diff --git a/Makefile b/Makefile
index 4f8b125..b4c02e6 100644
--- a/Makefile
+++ b/Makefile
@@ -120,6 +120,7 @@ TEST_OSINT_DNS_PROPOSAL := tests/test_osint_dns_proposal
 TEST_OSINT_DNS_INTEGRATION := tests/test_osint_dns_integration
 TEST_OSINT_EXECUTION_DAO := tests/test_osint_execution_dao
 TEST_OSINT_EXECUTION_INTEGRITY := tests/test_osint_execution_integrity
+TEST_EVIDENCE_RECLASSIFICATION := tests/test_evidence_reclassification
 
 all: $(TARGET)
 
@@ -595,6 +596,19 @@ $(TEST_OSINT_EXECUTION_INTEGRITY): \
 	src/core/osint_execution_integrity.c
 	$(CC) $(TEST_CFLAGS) $^ -o $@ $(TEST_LDFLAGS)
 
+$(TEST_EVIDENCE_RECLASSIFICATION): \
+	tests/test_evidence_reclassification.c \
+	src/core/evidence_reclassification.c \
+	src/core/file_hash.c \
+	src/dao/evidence_dao.c \
+	src/models/evidence_record.c \
+	src/database/database.c \
+	src/database/schema.c \
+	src/database/statement.c \
+	src/database/transaction.c \
+	src/database/error.c
+	$(CC) $(TEST_CFLAGS) $^ -o $@ $(TEST_LDFLAGS) -lsqlite3
+
 $(TEST_INVESTIGATION_GRAPH_LOAD_TASK): \
 	tests/test_investigation_graph_load_task.c \
 	src/core/investigation_graph_load_task.c \
@@ -669,7 +683,8 @@ test: \
 	$(TEST_OSINT_DNS_PROPOSAL) \
 	$(TEST_OSINT_DNS_INTEGRATION) \
 	$(TEST_OSINT_EXECUTION_DAO) \
-	$(TEST_OSINT_EXECUTION_INTEGRITY)
+	$(TEST_OSINT_EXECUTION_INTEGRITY) \
+	$(TEST_EVIDENCE_RECLASSIFICATION)
 	@echo "Exécution des tests..."
 	@./$(TEST_NODE)
 	@./$(TEST_TREE_MODEL)
@@ -724,6 +739,7 @@ test: \
 	@$(TEST_OSINT_DNS_INTEGRATION)
 	@$(TEST_OSINT_EXECUTION_DAO)
 	@$(TEST_OSINT_EXECUTION_INTEGRITY)
+	@$(TEST_EVIDENCE_RECLASSIFICATION)
 	@echo "Tous les tests sont valides."
 
 %.o: %.c
@@ -784,7 +800,8 @@ clean:
 		$(TEST_OSINT_DNS_PROPOSAL) \
 		$(TEST_OSINT_DNS_INTEGRATION) \
 		$(TEST_OSINT_EXECUTION_DAO) \
-		$(TEST_OSINT_EXECUTION_INTEGRITY)
+		$(TEST_OSINT_EXECUTION_INTEGRITY) \
+		$(TEST_EVIDENCE_RECLASSIFICATION)
 
 -include $(DEP)
 
diff --git a/README.md b/README.md
index aa80d9f..8dd2c00 100644
--- a/README.md
+++ b/README.md
@@ -138,6 +138,8 @@ Le socle actuel comprend notamment :
 - panneau d’activité GTK ;
 - import groupé de preuves avec confirmation globale, révision individuelle,
   copie contrôlée, empreinte SHA-256 et bilan détaillé ;
+- correction du type, de la source et de la description d'une preuve avec
+  contrôle d'intégrité et déplacement cohérent de sa copie interne ;
 - registre d’outils externes ;
 - exécution sécurisée par `GSubprocess` ;
 - exécution d’outils en tâche de fond ;
diff --git a/docs/database/DATABASE_ARCHITECTURE.md b/docs/database/DATABASE_ARCHITECTURE.md
index ef6164a..93e7529 100644
--- a/docs/database/DATABASE_ARCHITECTURE.md
+++ b/docs/database/DATABASE_ARCHITECTURE.md
@@ -766,6 +766,13 @@ importé séparément. Les imports sont exécutés séquentiellement afin d'évi
 les écritures SQLite concurrentes. L'échec d'un fichier n'annule pas les
 preuves déjà importées et apparaît dans le bilan final.
 
+Le classement, la source et la description peuvent être corrigés après
+l'import. Un changement de type déplace la copie interne vers le dossier
+adapté dans la même opération logique que la mise à jour SQLite. L'empreinte
+et la taille sont vérifiées avant et après ; un échec annule la transaction et
+restaure le chemin initial. L'UUID, le nom interne et la date d'import restent
+inchangés.
+
 ---
 
 ## 4.6 entites
diff --git a/include/core/evidence_reclassification.h b/include/core/evidence_reclassification.h
new file mode 100644
index 0000000..ff2133e
--- /dev/null
+++ b/include/core/evidence_reclassification.h
@@ -0,0 +1,44 @@
+/******************************************************************************
+ * @file evidence_reclassification.h
+ * @brief Reclassement cohérent d'une preuve sans modifier son contenu.
+ ******************************************************************************/
+
+#ifndef LABFY_INVESTIGATION_EVIDENCE_RECLASSIFICATION_H
+#define LABFY_INVESTIGATION_EVIDENCE_RECLASSIFICATION_H
+
+#include "database/database.h"
+
+#include <glib.h>
+
+G_BEGIN_DECLS
+
+/**
+ * @brief Déplace une preuve et met à jour ses métadonnées avec retour arrière.
+ *
+ * L'intégrité est contrôlée avant et après le déplacement. Le contenu,
+ * l'UUID, le nom interne, la taille, l'empreinte et la date d'import ne sont
+ * jamais modifiés.
+ *
+ * @param database Connexion SQLite ouverte.
+ * @param investigation_root Racine de l'enquête.
+ * @param evidence_identifier UUID de la preuve.
+ * @param type_identifier Nouveau type métier.
+ * @param relative_directory Dossier relatif de destination.
+ * @param source Nouvelle source, ou NULL.
+ * @param description Nouvelle description, ou NULL.
+ * @param error Adresse recevant une éventuelle erreur.
+ * @return TRUE si le reclassement complet réussit.
+ */
+gboolean evidence_reclassification_apply(
+    Database *database,
+    const char *investigation_root,
+    const char *evidence_identifier,
+    const char *type_identifier,
+    const char *relative_directory,
+    const char *source,
+    const char *description,
+    GError **error
+);
+
+G_END_DECLS
+#endif
diff --git a/include/dao/evidence_dao.h b/include/dao/evidence_dao.h
index 9788e60..9d0c38e 100644
--- a/include/dao/evidence_dao.h
+++ b/include/dao/evidence_dao.h
@@ -144,6 +144,34 @@ gboolean evidence_dao_update_integrity_status(
     GError **error
 );
 
+/**
+ * @brief Met à jour le classement et les métadonnées éditables d'une preuve.
+ *
+ * L'UUID, le nom interne, la taille, l'empreinte et la date d'import restent
+ * inchangés. La transaction éventuelle reste sous la responsabilité de
+ * l'appelant.
+ *
+ * @param evidence_dao DAO valide.
+ * @param identifier UUID de la preuve.
+ * @param type_identifier Nouveau code de type.
+ * @param relative_path Nouveau chemin relatif du fichier.
+ * @param source Nouvelle source, ou NULL.
+ * @param description Nouvelle description, ou NULL.
+ * @param updated_at Date UTC de modification.
+ * @param error Adresse recevant une éventuelle erreur.
+ * @return TRUE si la mise à jour réussit.
+ */
+gboolean evidence_dao_update_metadata(
+    EvidenceDao *evidence_dao,
+    const char *identifier,
+    const char *type_identifier,
+    const char *relative_path,
+    const char *source,
+    const char *description,
+    const char *updated_at,
+    GError **error
+);
+
 /**
  * @brief Compte les preuves persistées.
  *
diff --git a/include/views/evidence_metadata_dialog.h b/include/views/evidence_metadata_dialog.h
new file mode 100644
index 0000000..1b7b814
--- /dev/null
+++ b/include/views/evidence_metadata_dialog.h
@@ -0,0 +1,53 @@
+/******************************************************************************
+ * @file evidence_metadata_dialog.h
+ * @brief Dialogue de modification des métadonnées éditables d'une preuve.
+ ******************************************************************************/
+
+#ifndef LABFY_INVESTIGATION_EVIDENCE_METADATA_DIALOG_H
+#define LABFY_INVESTIGATION_EVIDENCE_METADATA_DIALOG_H
+
+#include "models/evidence_record.h"
+
+#include <gtk/gtk.h>
+
+G_BEGIN_DECLS
+
+/** @brief Résultat opaque possédé du dialogue. */
+typedef struct EvidenceMetadataDialogResult EvidenceMetadataDialogResult;
+
+/** @brief Callback recevant le résultat possédé, ou NULL après annulation. */
+typedef void (*EvidenceMetadataDialogCallback)(
+    EvidenceMetadataDialogResult *result, gpointer user_data
+);
+
+/**
+ * @brief Présente le dialogue prérempli de modification des métadonnées.
+ * @param parent Fenêtre parente.
+ * @param record Preuve empruntée.
+ * @param evidence_types Tableau emprunté de EvidenceType.
+ * @param callback Callback appelé une fois à la fermeture.
+ * @param user_data Données empruntées du callback.
+ * @return TRUE si la fenêtre a été créée.
+ */
+gboolean evidence_metadata_dialog_present(
+    GtkWindow *parent,
+    const EvidenceRecord *record,
+    const GPtrArray *evidence_types,
+    EvidenceMetadataDialogCallback callback,
+    gpointer user_data
+);
+
+/** @brief Libère un résultat, ou accepte NULL. */
+void evidence_metadata_dialog_result_free(EvidenceMetadataDialogResult *result);
+/** @brief Retourne le code de type emprunté. */
+const char *evidence_metadata_dialog_result_get_type_identifier(
+    const EvidenceMetadataDialogResult *result);
+/** @brief Retourne la source empruntée, ou NULL. */
+const char *evidence_metadata_dialog_result_get_source(
+    const EvidenceMetadataDialogResult *result);
+/** @brief Retourne la description empruntée, ou NULL. */
+const char *evidence_metadata_dialog_result_get_description(
+    const EvidenceMetadataDialogResult *result);
+
+G_END_DECLS
+#endif
diff --git a/include/views/main_window.h b/include/views/main_window.h
index cd992cc..feefb4d 100644
--- a/include/views/main_window.h
+++ b/include/views/main_window.h
@@ -86,6 +86,12 @@ typedef void (*MainWindowVerifyEvidenceCallback)(
     gpointer user_data
 );
 
+/** @brief Callback appelé pour modifier les métadonnées d'une preuve. */
+typedef void (*MainWindowEditEvidenceCallback)(
+    const char *evidence_identifier,
+    gpointer user_data
+);
+
 /**
  * @brief Callback appelé après le déplacement effectif d'un nœud.
  *
@@ -151,6 +157,18 @@ void main_window_set_verify_evidence_callback(
     gpointer user_data
 );
 
+/**
+ * @brief Définit le callback de modification de la preuve sélectionnée.
+ * @param main_window Fenêtre principale.
+ * @param callback Callback facultatif.
+ * @param user_data Données privées transmises au callback.
+ */
+void main_window_set_edit_evidence_callback(
+    MainWindow *main_window,
+    MainWindowEditEvidenceCallback callback,
+    gpointer user_data
+);
+
 /**
  * @brief Définit le callback de fin de déplacement d'un nœud.
  *
diff --git a/include/widgets/workspace.h b/include/widgets/workspace.h
index 5fb7b29..433c9b6 100644
--- a/include/widgets/workspace.h
+++ b/include/widgets/workspace.h
@@ -95,6 +95,12 @@ typedef void (*WorkspaceOsintActionCallback)(
     gpointer user_data
 );
 
+/** @brief Callback appelé pour modifier les métadonnées d'une preuve. */
+typedef void (*WorkspaceEditEvidenceCallback)(
+    const char *evidence_identifier,
+    gpointer user_data
+);
+
 /**
  * @brief Crée une nouvelle zone de travail.
  *
@@ -204,6 +210,18 @@ void workspace_set_osint_action_callback(
     gpointer user_data
 );
 
+/**
+ * @brief Définit le callback de modification de la preuve sélectionnée.
+ * @param workspace Zone de travail.
+ * @param callback Callback facultatif.
+ * @param user_data Données empruntées transmises au callback.
+ */
+void workspace_set_edit_evidence_callback(
+    Workspace *workspace,
+    WorkspaceEditEvidenceCallback callback,
+    gpointer user_data
+);
+
 /**
  * @brief Définit le callback de vérification de la preuve affichée.
  *
diff --git a/src/core/application.c b/src/core/application.c
index 1d61966..4e5c944 100644
--- a/src/core/application.c
+++ b/src/core/application.c
@@ -27,12 +27,14 @@
 #include "core/tool_task.h"
 #include "core/osint_dns_integration.h"
 #include "core/osint_execution_integrity.h"
+#include "core/evidence_reclassification.h"
 #include "views/file_dialog.h"
 #include "core/evidence_import_task.h"
 #include "models/evidence_record.h"
 #include "dao/evidence_type_dao.h"
 #include "dao/graph_node_position_dao.h"
 #include "views/evidence_import_dialog.h"
+#include "views/evidence_metadata_dialog.h"
 #include "views/create_relation_dialog.h"
 #include "views/osint_dns_review_dialog.h"
 #include "views/osint_execution_history_dialog.h"
@@ -159,6 +161,20 @@ typedef struct
     char *file_path;
 } ApplicationEvidenceDialogContext;
 
+/** @brief Contexte possédé pendant l'édition d'une preuve. */
+typedef struct
+{
+    Application *application;
+    char *evidence_identifier;
+} ApplicationEvidenceMetadataContext;
+
+/** @brief Données d'actualisation différée après reclassement. */
+typedef struct
+{
+    Application *application;
+    char *root_path;
+} ApplicationEvidenceRefreshContext;
+
 /**
  * @brief Contexte conservé jusqu'à la fin d'une vérification.
  */
@@ -3138,6 +3154,131 @@ static const char *application_get_evidence_subdirectory(
     return "Documents";
 }
 
+/** @brief Libère le contexte d'édition des métadonnées. */
+static void application_evidence_metadata_context_free(
+    ApplicationEvidenceMetadataContext *context
+)
+{
+    if (context == NULL) return;
+    g_free(context->evidence_identifier); g_free(context);
+}
+
+/** @brief Actualise les vues après la destruction du dialogue d'édition. */
+static gboolean application_refresh_after_evidence_reclassification(
+    gpointer user_data
+)
+{
+    ApplicationEvidenceRefreshContext *context = user_data;
+    GError *error = NULL;
+    if (context != NULL && context->application != NULL &&
+        context->application->main_window != NULL)
+    {
+        application_refresh_investigation_tree(
+            context->application, context->root_path);
+        application_refresh_evidence_models(context->application, &error);
+        main_window_set_selected_evidence(
+            context->application->main_window, NULL);
+        application_message_dialog_present(
+            main_window_get_window(context->application->main_window),
+            APPLICATION_MESSAGE_DIALOG_INFORMATION, "Preuve reclassée",
+            "Les métadonnées et le dossier ont été mis à jour. Le SHA-256 est inchangé.");
+    }
+    g_clear_error(&error);
+    if (context != NULL) { g_free(context->root_path); g_free(context); }
+    return G_SOURCE_REMOVE;
+}
+
+/** @brief Applique le reclassement confirmé puis actualise les vues. */
+static void application_on_evidence_metadata_edited(
+    EvidenceMetadataDialogResult *result, gpointer user_data
+)
+{
+    ApplicationEvidenceMetadataContext *context = user_data;
+    Application *application = context != NULL ? context->application : NULL;
+    const InvestigationProject *project = NULL;
+    const char *root_path = NULL; const char *subdirectory = NULL;
+    char *relative_directory = NULL; GError *error = NULL;
+    if (result == NULL)
+    {
+        application_evidence_metadata_context_free(context);
+        return;
+    }
+    if (application == NULL || application->session == NULL) goto cleanup;
+    project = investigation_session_get_project(application->session);
+    root_path = project != NULL ? investigation_project_get_root_path(project) : NULL;
+    subdirectory = application_get_evidence_subdirectory(
+        evidence_metadata_dialog_result_get_type_identifier(result));
+    relative_directory = g_build_filename(
+        APPLICATION_EVIDENCE_ROOT_DIRECTORY, subdirectory, NULL);
+    if (!evidence_reclassification_apply(
+            investigation_session_get_database(application->session), root_path,
+            context->evidence_identifier,
+            evidence_metadata_dialog_result_get_type_identifier(result),
+            relative_directory,
+            evidence_metadata_dialog_result_get_source(result),
+            evidence_metadata_dialog_result_get_description(result), &error))
+    {
+        application_present_error(application, "Modification impossible",
+            error != NULL ? error->message : "Le reclassement a échoué.");
+        g_clear_error(&error); goto cleanup;
+    }
+    {
+        ApplicationEvidenceRefreshContext *refresh_context =
+            g_new0(ApplicationEvidenceRefreshContext, 1);
+        refresh_context->application = application;
+        refresh_context->root_path = g_strdup(root_path);
+        g_timeout_add(50U,
+            application_refresh_after_evidence_reclassification,
+            refresh_context);
+    }
+cleanup:
+    g_free(relative_directory);
+    evidence_metadata_dialog_result_free(result);
+    application_evidence_metadata_context_free(context);
+}
+
+/** @brief Charge et présente les métadonnées éditables d'une preuve. */
+static void application_on_edit_evidence_requested(
+    const char *evidence_identifier, gpointer user_data
+)
+{
+    Application *application = user_data; Database *database = NULL;
+    EvidenceDao *evidence_dao = NULL; EvidenceTypeDao *type_dao = NULL;
+    EvidenceRecord *record = NULL; GPtrArray *types = NULL;
+    ApplicationEvidenceMetadataContext *context = NULL; GError *error = NULL;
+    if (application == NULL || application->session == NULL ||
+        evidence_identifier == NULL) return;
+    database = investigation_session_get_database(application->session);
+    evidence_dao = evidence_dao_new(database, &error);
+    type_dao = evidence_type_dao_new(database, &error);
+    if (evidence_dao != NULL)
+        record = evidence_dao_find_by_identifier(
+            evidence_dao, evidence_identifier, &error);
+    if (type_dao != NULL) types = evidence_type_dao_list_all(type_dao, &error);
+    if (record == NULL || types == NULL || types->len == 0U)
+    {
+        application_present_error(application, "Modification impossible",
+            error != NULL ? error->message : "Les métadonnées sont indisponibles.");
+        goto cleanup;
+    }
+    context = g_new0(ApplicationEvidenceMetadataContext, 1);
+    context->application = application;
+    context->evidence_identifier = g_strdup(evidence_identifier);
+    if (!evidence_metadata_dialog_present(
+            main_window_get_window(application->main_window), record, types,
+            application_on_evidence_metadata_edited, context))
+    {
+        application_evidence_metadata_context_free(context);
+        context = NULL;
+        application_present_error(application, "Modification impossible",
+            "Le dialogue de métadonnées n'a pas pu être créé.");
+    }
+cleanup:
+    g_clear_error(&error); g_clear_pointer(&types, g_ptr_array_unref);
+    evidence_record_free(record); evidence_type_dao_free(type_dao);
+    evidence_dao_free(evidence_dao);
+}
+
 /**
  * @brief Prépare et démarre l’import asynchrone d’un fichier.
  */
@@ -5952,6 +6093,12 @@ static void application_on_activate(
         application
     );
 
+    main_window_set_edit_evidence_callback(
+        application->main_window,
+        application_on_edit_evidence_requested,
+        application
+    );
+
     main_window_set_graph_node_moved_callback(
         application->main_window,
         application_on_graph_node_moved,
diff --git a/src/core/evidence_reclassification.c b/src/core/evidence_reclassification.c
new file mode 100644
index 0000000..098502d
--- /dev/null
+++ b/src/core/evidence_reclassification.c
@@ -0,0 +1,120 @@
+/******************************************************************************
+ * @file evidence_reclassification.c
+ * @brief Reclassement cohérent d'une preuve sans modifier son contenu.
+ ******************************************************************************/
+
+#include "core/evidence_reclassification.h"
+
+#include "core/file_hash.h"
+#include "dao/evidence_dao.h"
+#include "database/transaction.h"
+#include "models/evidence_record.h"
+
+#include <glib/gstdio.h>
+#include <errno.h>
+
+/** @brief Enregistre une erreur de reclassement si aucune n'existe encore. */
+static void evidence_reclassification_set_error(
+    GError **error, const char *message
+)
+{
+    if (error != NULL && *error == NULL)
+        g_set_error_literal(error, G_IO_ERROR, G_IO_ERROR_FAILED, message);
+}
+
+gboolean evidence_reclassification_apply(
+    Database *database, const char *investigation_root,
+    const char *evidence_identifier, const char *type_identifier,
+    const char *relative_directory, const char *source,
+    const char *description, GError **error
+)
+{
+    EvidenceDao *dao = NULL; EvidenceRecord *record = NULL;
+    char *old_path = NULL; char *new_path = NULL; char *new_relative_path = NULL;
+    char *new_parent = NULL; char *sha256 = NULL; char *updated_at = NULL;
+    guint64 size_bytes = 0U; GDateTime *now = NULL;
+    gboolean moved = FALSE; gboolean transaction_started = FALSE;
+    gboolean success = FALSE;
+    if (database == NULL || investigation_root == NULL ||
+        evidence_identifier == NULL || type_identifier == NULL ||
+        relative_directory == NULL || g_path_is_absolute(relative_directory) ||
+        strstr(relative_directory, "..") != NULL)
+    {
+        g_set_error_literal(error, G_IO_ERROR, G_IO_ERROR_INVALID_ARGUMENT,
+            "Les paramètres de reclassement sont invalides.");
+        return FALSE;
+    }
+    dao = evidence_dao_new(database, error);
+    if (dao == NULL) goto cleanup;
+    record = evidence_dao_find_by_identifier(dao, evidence_identifier, error);
+    if (record == NULL) goto cleanup;
+    old_path = g_build_filename(investigation_root,
+        evidence_record_get_relative_path(record), NULL);
+    new_relative_path = g_build_filename(relative_directory,
+        evidence_record_get_internal_name(record), NULL);
+    new_path = g_build_filename(investigation_root, new_relative_path, NULL);
+    new_parent = g_path_get_dirname(new_path);
+    if (!file_hash_compute_sha256(old_path, NULL, &sha256, &size_bytes, error) ||
+        g_strcmp0(sha256, evidence_record_get_sha256(record)) != 0 ||
+        size_bytes != evidence_record_get_size_bytes(record))
+    {
+        evidence_reclassification_set_error(error,
+            "L'intégrité de la preuve source n'est pas conforme.");
+        goto cleanup;
+    }
+    g_clear_pointer(&sha256, g_free);
+    if (g_mkdir_with_parents(new_parent, 0700) != 0)
+    {
+        g_set_error(error, G_IO_ERROR, g_io_error_from_errno(errno),
+            "Impossible de préparer le dossier de destination : %s",
+            g_strerror(errno));
+        goto cleanup;
+    }
+    if (!database_transaction_begin(database))
+    {
+        evidence_reclassification_set_error(error,
+            "Impossible de démarrer la transaction de reclassement.");
+        goto cleanup;
+    }
+    transaction_started = TRUE;
+    if (g_strcmp0(old_path, new_path) != 0)
+    {
+        if (g_file_test(new_path, G_FILE_TEST_EXISTS) ||
+            g_rename(old_path, new_path) != 0)
+        {
+            g_set_error(error, G_IO_ERROR, g_io_error_from_errno(errno),
+                "Impossible de déplacer la preuve : %s", g_strerror(errno));
+            goto cleanup;
+        }
+        moved = TRUE;
+    }
+    now = g_date_time_new_now_utc();
+    updated_at = now != NULL
+        ? g_date_time_format(now, "%Y-%m-%dT%H:%M:%SZ") : NULL;
+    if (!evidence_dao_update_metadata(dao, evidence_identifier,
+            type_identifier, new_relative_path, source, description,
+            updated_at, error) ||
+        !file_hash_compute_sha256(new_path, NULL, &sha256, &size_bytes, error) ||
+        g_strcmp0(sha256, evidence_record_get_sha256(record)) != 0 ||
+        size_bytes != evidence_record_get_size_bytes(record))
+    {
+        evidence_reclassification_set_error(error,
+            "L'intégrité après reclassement n'est pas conforme.");
+        goto cleanup;
+    }
+    if (!database_transaction_commit(database))
+    {
+        evidence_reclassification_set_error(error,
+            "Impossible de valider le reclassement.");
+        goto cleanup;
+    }
+    transaction_started = FALSE; success = TRUE;
+cleanup:
+    if (!success && transaction_started) database_transaction_rollback(database);
+    if (!success && moved && g_rename(new_path, old_path) != 0)
+        g_warning("Impossible de restaurer la preuve '%s'.", old_path);
+    g_clear_pointer(&now, g_date_time_unref); g_free(updated_at); g_free(sha256);
+    g_free(new_parent); g_free(new_path); g_free(new_relative_path); g_free(old_path);
+    evidence_record_free(record); evidence_dao_free(dao);
+    return success;
+}
diff --git a/src/dao/evidence_dao.c b/src/dao/evidence_dao.c
index a813313..d6abd44 100644
--- a/src/dao/evidence_dao.c
+++ b/src/dao/evidence_dao.c
@@ -156,6 +156,11 @@ static const char *const evidence_dao_update_integrity_status_sql =
     "SET integrity_status = ? "
     "WHERE id = ?;";
 
+/** @brief Requête de mise à jour des métadonnées éditables. */
+static const char *const evidence_dao_update_metadata_sql =
+    "UPDATE preuves SET type_id=(SELECT id FROM types_preuve WHERE code=?),"
+    "relative_path=?,source=?,description=?,updated_at=? WHERE id=?;";
+
 /**
  * @brief Enregistre une erreur littérale.
  */
@@ -1344,6 +1349,49 @@ cleanup:
     return success;
 }
 
+gboolean evidence_dao_update_metadata(
+    EvidenceDao *evidence_dao, const char *identifier,
+    const char *type_identifier, const char *relative_path,
+    const char *source, const char *description, const char *updated_at,
+    GError **error
+)
+{
+    DatabaseStatement *statement = NULL;
+    gboolean success = FALSE;
+    g_return_val_if_fail(error == NULL || *error == NULL, FALSE);
+    if (evidence_dao == NULL || evidence_dao->database == NULL ||
+        identifier == NULL || !g_uuid_string_is_valid(identifier) ||
+        type_identifier == NULL || type_identifier[0] == '\0' ||
+        relative_path == NULL || relative_path[0] == '\0' ||
+        g_path_is_absolute(relative_path) || updated_at == NULL ||
+        strlen(updated_at) != 20U)
+    {
+        evidence_dao_set_error_literal(error,
+            EVIDENCE_DAO_ERROR_INVALID_ARGUMENT,
+            "Les métadonnées de reclassement sont invalides.");
+        return FALSE;
+    }
+    statement = database_statement_prepare(
+        evidence_dao->database, evidence_dao_update_metadata_sql);
+    if (statement == NULL) goto cleanup;
+    success = database_statement_bind_text(statement, 1, type_identifier) &&
+        database_statement_bind_text(statement, 2, relative_path) &&
+        (source != NULL ? database_statement_bind_text(statement, 3, source)
+                        : database_statement_bind_null(statement, 3)) &&
+        (description != NULL
+            ? database_statement_bind_text(statement, 4, description)
+            : database_statement_bind_null(statement, 4)) &&
+        database_statement_bind_text(statement, 5, updated_at) &&
+        database_statement_bind_text(statement, 6, identifier) &&
+        database_statement_step(statement) == DATABASE_STATEMENT_STEP_DONE;
+cleanup:
+    if (!success) evidence_dao_set_database_error(evidence_dao, error,
+        EVIDENCE_DAO_ERROR_EXECUTE,
+        "Impossible de mettre à jour les métadonnées de la preuve");
+    database_statement_finalize(statement);
+    return success;
+}
+
 gboolean evidence_dao_count(
     EvidenceDao *evidence_dao,
     guint64 *out_count,
diff --git a/src/views/evidence_metadata_dialog.c b/src/views/evidence_metadata_dialog.c
new file mode 100644
index 0000000..4106ffb
--- /dev/null
+++ b/src/views/evidence_metadata_dialog.c
@@ -0,0 +1,212 @@
+/******************************************************************************
+ * @file evidence_metadata_dialog.c
+ * @brief Dialogue de modification des métadonnées éditables d'une preuve.
+ ******************************************************************************/
+
+#include "views/evidence_metadata_dialog.h"
+
+#include "models/evidence_type.h"
+
+struct EvidenceMetadataDialogResult
+{
+    char *type_identifier;
+    char *source;
+    char *description;
+};
+
+typedef struct
+{
+    GtkWindow *window;
+    GtkDropDown *type_dropdown;
+    GtkEditable *source_entry;
+    GtkTextBuffer *description_buffer;
+    GtkStringList *type_labels;
+    GPtrArray *type_identifiers;
+    EvidenceMetadataDialogCallback callback;
+    gpointer user_data;
+    gboolean completed;
+} EvidenceMetadataDialogContext;
+
+/** @brief Copie un texte facultatif et transforme une chaîne vide en NULL. */
+static char *evidence_metadata_dialog_copy_optional(const char *text)
+{
+    char *copy = text != NULL ? g_strdup(text) : NULL;
+    if (copy != NULL) g_strstrip(copy);
+    if (copy != NULL && copy[0] == '\0') g_clear_pointer(&copy, g_free);
+    return copy;
+}
+
+/** @brief Libère le contexte détenu par la fenêtre. */
+static void evidence_metadata_dialog_context_free(gpointer data)
+{
+    EvidenceMetadataDialogContext *context = data;
+    if (context == NULL) return;
+    g_clear_pointer(&context->type_identifiers, g_ptr_array_unref);
+    g_clear_object(&context->type_labels);
+    g_free(context);
+}
+
+/** @brief Détruit la fenêtre hors de la pile du signal GTK courant. */
+static gboolean evidence_metadata_dialog_destroy_idle(gpointer data)
+{
+    GtkWindow *window = GTK_WINDOW(data);
+    gtk_window_destroy(window);
+    g_object_unref(window);
+    return G_SOURCE_REMOVE;
+}
+
+/** @brief Termine le dialogue et transmet éventuellement un résultat. */
+static void evidence_metadata_dialog_complete(
+    EvidenceMetadataDialogContext *context,
+    EvidenceMetadataDialogResult *result
+)
+{
+    if (context == NULL || context->completed) return;
+    context->completed = TRUE;
+    if (context->callback != NULL) context->callback(result, context->user_data);
+    else evidence_metadata_dialog_result_free(result);
+    gtk_widget_set_visible(GTK_WIDGET(context->window), FALSE);
+    g_idle_add(
+        evidence_metadata_dialog_destroy_idle,
+        g_object_ref(context->window)
+    );
+}
+
+/** @brief Annule la modification. */
+static void evidence_metadata_dialog_on_cancel(
+    GtkButton *button, gpointer user_data
+)
+{
+    (void) button;
+    evidence_metadata_dialog_complete(user_data, NULL);
+}
+
+/** @brief Traite la fermeture native comme une annulation explicite. */
+static gboolean evidence_metadata_dialog_on_close_request(
+    GtkWindow *window, gpointer user_data
+)
+{
+    (void) window;
+    evidence_metadata_dialog_complete(user_data, NULL);
+    return TRUE;
+}
+
+/** @brief Construit et transmet les valeurs modifiées. */
+static void evidence_metadata_dialog_on_save(
+    GtkButton *button, gpointer user_data
+)
+{
+    EvidenceMetadataDialogContext *context = user_data;
+    EvidenceMetadataDialogResult *result = NULL;
+    GtkTextIter start; GtkTextIter end; char *description = NULL;
+    guint selected = 0U;
+    (void) button;
+    if (context == NULL) return;
+    selected = gtk_drop_down_get_selected(context->type_dropdown);
+    if (selected >= context->type_identifiers->len) return;
+    gtk_text_buffer_get_bounds(context->description_buffer, &start, &end);
+    description = gtk_text_buffer_get_text(
+        context->description_buffer, &start, &end, FALSE);
+    result = g_new0(EvidenceMetadataDialogResult, 1);
+    result->type_identifier = g_strdup(
+        g_ptr_array_index(context->type_identifiers, selected));
+    result->source = evidence_metadata_dialog_copy_optional(
+        gtk_editable_get_text(context->source_entry));
+    result->description = evidence_metadata_dialog_copy_optional(description);
+    g_free(description);
+    evidence_metadata_dialog_complete(context, result);
+}
+
+gboolean evidence_metadata_dialog_present(
+    GtkWindow *parent, const EvidenceRecord *record,
+    const GPtrArray *evidence_types, EvidenceMetadataDialogCallback callback,
+    gpointer user_data
+)
+{
+    EvidenceMetadataDialogContext *context = NULL;
+    GtkStringList *labels = NULL; GtkWidget *main_box = NULL;
+    GtkWidget *description_view = NULL; GtkWidget *description_scroll = NULL;
+    GtkWidget *buttons = NULL; GtkWidget *cancel = NULL; GtkWidget *save = NULL;
+    guint selected = 0U;
+    if (record == NULL || evidence_types == NULL || evidence_types->len == 0U ||
+        callback == NULL) return FALSE;
+    context = g_new0(EvidenceMetadataDialogContext, 1);
+    context->window = GTK_WINDOW(gtk_window_new());
+    context->callback = callback; context->user_data = user_data;
+    context->type_identifiers = g_ptr_array_new_with_free_func(g_free);
+    labels = gtk_string_list_new(NULL);
+    context->type_labels = labels;
+    for (guint index = 0U; index < evidence_types->len; index++)
+    {
+        const EvidenceType *type = g_ptr_array_index((GPtrArray *) evidence_types, index);
+        gtk_string_list_append(labels, evidence_type_get_label(type));
+        g_ptr_array_add(context->type_identifiers,
+            g_strdup(evidence_type_get_code(type)));
+        if (g_strcmp0(evidence_type_get_code(type),
+                evidence_record_get_type_identifier(record)) == 0) selected = index;
+    }
+    gtk_window_set_title(context->window, "Modifier les métadonnées");
+    gtk_window_set_default_size(context->window, 560, 420);
+    gtk_window_set_modal(context->window, TRUE);
+    gtk_window_set_destroy_with_parent(context->window, TRUE);
+    if (parent != NULL) gtk_window_set_transient_for(context->window, parent);
+    g_object_set_data_full(G_OBJECT(context->window), "evidence-metadata-context",
+        context, evidence_metadata_dialog_context_free);
+    main_box = gtk_box_new(GTK_ORIENTATION_VERTICAL, 10);
+    gtk_widget_set_margin_start(main_box, 18); gtk_widget_set_margin_end(main_box, 18);
+    gtk_widget_set_margin_top(main_box, 18); gtk_widget_set_margin_bottom(main_box, 18);
+    gtk_box_append(GTK_BOX(main_box), gtk_label_new(
+        "Le fichier, son UUID, sa taille, sa date d'import et son SHA-256 resteront inchangés."));
+    context->type_dropdown = GTK_DROP_DOWN(gtk_drop_down_new(
+        G_LIST_MODEL(labels), NULL));
+    gtk_drop_down_set_selected(context->type_dropdown, selected);
+    gtk_box_append(GTK_BOX(main_box), gtk_label_new("Type de preuve"));
+    gtk_box_append(GTK_BOX(main_box), GTK_WIDGET(context->type_dropdown));
+    context->source_entry = GTK_EDITABLE(gtk_entry_new());
+    gtk_editable_set_text(context->source_entry,
+        evidence_record_get_source(record) != NULL
+            ? evidence_record_get_source(record) : "");
+    gtk_box_append(GTK_BOX(main_box), gtk_label_new("Source"));
+    gtk_box_append(GTK_BOX(main_box), GTK_WIDGET(context->source_entry));
+    description_view = gtk_text_view_new();
+    context->description_buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(description_view));
+    gtk_text_buffer_set_text(context->description_buffer,
+        evidence_record_get_description(record) != NULL
+            ? evidence_record_get_description(record) : "", -1);
+    gtk_text_view_set_wrap_mode(GTK_TEXT_VIEW(description_view), GTK_WRAP_WORD_CHAR);
+    description_scroll = gtk_scrolled_window_new();
+    gtk_widget_set_vexpand(description_scroll, TRUE);
+    gtk_scrolled_window_set_child(GTK_SCROLLED_WINDOW(description_scroll), description_view);
+    gtk_box_append(GTK_BOX(main_box), gtk_label_new("Description"));
+    gtk_box_append(GTK_BOX(main_box), description_scroll);
+    buttons = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 8);
+    gtk_widget_set_halign(buttons, GTK_ALIGN_END);
+    cancel = gtk_button_new_with_label("Annuler");
+    save = gtk_button_new_with_label("Enregistrer");
+    gtk_widget_add_css_class(save, "suggested-action");
+    g_signal_connect(cancel, "clicked", G_CALLBACK(evidence_metadata_dialog_on_cancel), context);
+    g_signal_connect(save, "clicked", G_CALLBACK(evidence_metadata_dialog_on_save), context);
+    g_signal_connect(context->window, "close-request",
+        G_CALLBACK(evidence_metadata_dialog_on_close_request), context);
+    gtk_box_append(GTK_BOX(buttons), cancel); gtk_box_append(GTK_BOX(buttons), save);
+    gtk_box_append(GTK_BOX(main_box), buttons);
+    gtk_window_set_child(context->window, main_box);
+    gtk_window_present(context->window);
+    return TRUE;
+}
+
+void evidence_metadata_dialog_result_free(EvidenceMetadataDialogResult *result)
+{
+    if (result == NULL) return;
+    g_free(result->type_identifier); g_free(result->source);
+    g_free(result->description); g_free(result);
+}
+const char *evidence_metadata_dialog_result_get_type_identifier(
+    const EvidenceMetadataDialogResult *result)
+{ return result != NULL ? result->type_identifier : NULL; }
+const char *evidence_metadata_dialog_result_get_source(
+    const EvidenceMetadataDialogResult *result)
+{ return result != NULL ? result->source : NULL; }
+const char *evidence_metadata_dialog_result_get_description(
+    const EvidenceMetadataDialogResult *result)
+{ return result != NULL ? result->description : NULL; }
diff --git a/src/views/main_window.c b/src/views/main_window.c
index ab01c13..9fbd5ab 100644
--- a/src/views/main_window.c
+++ b/src/views/main_window.c
@@ -24,7 +24,7 @@
 /**
  * @brief Position initiale de la séparation horizontale.
  */
-#define MAIN_WINDOW_SIDEBAR_POSITION 320
+#define MAIN_WINDOW_SIDEBAR_POSITION 640
 
 /**
  * @brief Position initiale de la séparation verticale.
@@ -99,6 +99,9 @@ struct MainWindow
     gpointer
         verify_evidence_user_data;
 
+    MainWindowEditEvidenceCallback edit_evidence_callback;
+    gpointer edit_evidence_user_data;
+
     MainWindowGraphNodeMovedCallback
         graph_node_moved_callback;
 
@@ -156,6 +159,17 @@ static void main_window_on_osint_action_requested(
     );
 }
 
+/** @brief Relaie la modification d'une preuve vers l'application. */
+static void main_window_on_edit_evidence_requested(
+    const char *evidence_identifier, gpointer user_data
+)
+{
+    MainWindow *main_window = user_data;
+    if (main_window == NULL || main_window->edit_evidence_callback == NULL) return;
+    main_window->edit_evidence_callback(
+        evidence_identifier, main_window->edit_evidence_user_data);
+}
+
 /**
  * @brief Ouvre dans le workspace l'entité choisie dans la sidebar.
  */
@@ -782,6 +796,12 @@ MainWindow *main_window_new(
         main_window
     );
 
+    workspace_set_edit_evidence_callback(
+        main_window->workspace,
+        main_window_on_edit_evidence_requested,
+        main_window
+    );
+
     workspace_widget = workspace_get_widget(
         main_window->workspace
     );
@@ -1297,6 +1317,16 @@ void main_window_set_osint_action_callback(
     main_window->osint_action_user_data = user_data;
 }
 
+void main_window_set_edit_evidence_callback(
+    MainWindow *main_window, MainWindowEditEvidenceCallback callback,
+    gpointer user_data
+)
+{
+    if (main_window == NULL) return;
+    main_window->edit_evidence_callback = callback;
+    main_window->edit_evidence_user_data = user_data;
+}
+
 void main_window_set_tree_selection_callback(
     MainWindow *main_window,
     InvestigationTreeViewSelectionCallback callback,
diff --git a/src/widgets/workspace.c b/src/widgets/workspace.c
index a7a96d8..a57859d 100644
--- a/src/widgets/workspace.c
+++ b/src/widgets/workspace.c
@@ -85,6 +85,7 @@ struct Workspace
     GtkWidget *evidence_identifier_label;
     GtkWidget *evidence_sha256_label;
     GtkWidget *verify_evidence_button;
+    GtkWidget *edit_evidence_button;
 
     char *selected_evidence_identifier;
 
@@ -94,6 +95,9 @@ struct Workspace
     gpointer
         verify_evidence_user_data;
 
+    WorkspaceEditEvidenceCallback edit_evidence_callback;
+    gpointer edit_evidence_user_data;
+
     WorkspaceGraphNodeMovedCallback
         graph_node_moved_callback;
 
@@ -834,6 +838,20 @@ static void workspace_on_verify_evidence_clicked(
     );
 }
 
+/** @brief Transmet la demande de modification de la preuve affichée. */
+static void workspace_on_edit_evidence_clicked(
+    GtkButton *button, gpointer user_data
+)
+{
+    Workspace *workspace = user_data;
+    (void) button;
+    if (workspace == NULL || workspace->edit_evidence_callback == NULL ||
+        workspace->selected_evidence_identifier == NULL) return;
+    workspace->edit_evidence_callback(
+        workspace->selected_evidence_identifier,
+        workspace->edit_evidence_user_data);
+}
+
 Workspace *workspace_new(void)
 {
     GtkWidget *evidence_content = NULL;
@@ -1153,6 +1171,16 @@ Workspace *workspace_new(void)
         workspace->verify_evidence_button
     );
 
+    workspace->edit_evidence_button = gtk_button_new_with_label(
+        "Modifier les métadonnées");
+    gtk_widget_set_halign(workspace->edit_evidence_button, GTK_ALIGN_START);
+    gtk_widget_set_sensitive(workspace->edit_evidence_button, FALSE);
+    gtk_widget_set_tooltip_text(workspace->edit_evidence_button,
+        "Corriger le classement sans modifier le fichier original");
+    g_signal_connect(workspace->edit_evidence_button, "clicked",
+        G_CALLBACK(workspace_on_edit_evidence_clicked), workspace);
+    gtk_box_append(GTK_BOX(evidence_content), workspace->edit_evidence_button);
+
     evidence_separator =
         gtk_separator_new(
             GTK_ORIENTATION_HORIZONTAL
@@ -2079,6 +2107,8 @@ void workspace_set_selected_node(
             FALSE
         );
     }
+    if (workspace->edit_evidence_button != NULL)
+        gtk_widget_set_sensitive(workspace->edit_evidence_button, FALSE);
 
     if (node == NULL)
     {
@@ -2233,6 +2263,7 @@ void workspace_set_selected_evidence(
         workspace->verify_evidence_button,
         TRUE
     );
+    gtk_widget_set_sensitive(workspace->edit_evidence_button, TRUE);
 
     size_bytes =
         evidence_record_get_size_bytes(
@@ -2774,6 +2805,16 @@ void workspace_set_verify_evidence_callback(
         user_data;
 }
 
+void workspace_set_edit_evidence_callback(
+    Workspace *workspace, WorkspaceEditEvidenceCallback callback,
+    gpointer user_data
+)
+{
+    if (workspace == NULL) return;
+    workspace->edit_evidence_callback = callback;
+    workspace->edit_evidence_user_data = user_data;
+}
+
 void workspace_set_graph_node_moved_callback(
     Workspace *workspace,
     WorkspaceGraphNodeMovedCallback callback,
diff --git a/tests/test_evidence_reclassification.c b/tests/test_evidence_reclassification.c
new file mode 100644
index 0000000..783706e
--- /dev/null
+++ b/tests/test_evidence_reclassification.c
@@ -0,0 +1,71 @@
+/******************************************************************************
+ * @file test_evidence_reclassification.c
+ * @brief Tests du reclassement cohérent des preuves.
+ ******************************************************************************/
+
+#include "core/evidence_reclassification.h"
+#include "core/file_hash.h"
+#include "dao/evidence_dao.h"
+#include "database/database.h"
+#include "models/evidence_record.h"
+
+#include <glib.h>
+#include <glib/gstdio.h>
+
+static void test_reclassification_preserves_identity_and_hash(void)
+{
+    GError *error = NULL; guint64 size = 0U; char *sha256 = NULL;
+    char *root = g_dir_make_tmp("labfy-reclassify-XXXXXX", &error);
+    char *database_dir = g_build_filename(root, "00_BaseDeDonnees", NULL);
+    char *database_path = g_build_filename(database_dir, "Enquete.sqlite", NULL);
+    char *old_dir = g_build_filename(root, "01_Preuves_Originales", "Documents", NULL);
+    char *old_path = g_build_filename(old_dir, "internal.bin", NULL);
+    char *new_path = g_build_filename(root, "01_Preuves_Originales", "Photos",
+        "internal.bin", NULL);
+    Database *database = NULL; EvidenceDao *dao = NULL;
+    EvidenceRecord *record = NULL; EvidenceRecord *loaded = NULL;
+    g_assert_no_error(error);
+    g_assert_cmpint(g_mkdir_with_parents(database_dir, 0700), ==, 0);
+    g_assert_cmpint(g_mkdir_with_parents(old_dir, 0700), ==, 0);
+    g_assert_true(g_file_set_contents(old_path, "binary\0content", 14, &error));
+    g_assert_true(file_hash_compute_sha256(old_path, NULL, &sha256, &size, &error));
+    g_assert_true(database_initialize(database_path, "Test", root));
+    database = database_open(database_path); dao = evidence_dao_new(database, &error);
+    record = evidence_record_new(
+        "aaaaaaaa-aaaa-4aaa-8aaa-aaaaaaaaaaaa", "original.bin", "internal.bin",
+        "01_Preuves_Originales/Documents/internal.bin", "document", size, sha256,
+        "2026-07-22T10:00:00Z", "2026-07-18T10:00:00Z", "Victime", "Avant",
+        EVIDENCE_INTEGRITY_STATUS_UNKNOWN, &error);
+    g_assert_nonnull(record); g_assert_true(evidence_dao_insert(dao, record, &error));
+    g_assert_true(evidence_reclassification_apply(
+        database, root, "aaaaaaaa-aaaa-4aaa-8aaa-aaaaaaaaaaaa", "photo",
+        "01_Preuves_Originales/Photos", "Victime", "Après", &error));
+    g_assert_false(g_file_test(old_path, G_FILE_TEST_EXISTS));
+    g_assert_true(g_file_test(new_path, G_FILE_TEST_IS_REGULAR));
+    loaded = evidence_dao_find_by_identifier(
+        dao, "aaaaaaaa-aaaa-4aaa-8aaa-aaaaaaaaaaaa", &error);
+    g_assert_cmpstr(evidence_record_get_type_identifier(loaded), ==, "photo");
+    g_assert_cmpstr(evidence_record_get_sha256(loaded), ==, sha256);
+    g_assert_cmpstr(evidence_record_get_imported_at(loaded), ==,
+        "2026-07-22T10:00:00Z");
+    g_assert_cmpstr(evidence_record_get_description(loaded), ==, "Après");
+    evidence_record_free(loaded); evidence_record_free(record);
+    evidence_dao_free(dao); database_close(database);
+    g_assert_cmpint(g_remove(new_path), ==, 0);
+    g_assert_cmpint(g_remove(database_path), ==, 0);
+    char *photos = g_path_get_dirname(new_path);
+    char *originals = g_path_get_dirname(photos);
+    g_assert_cmpint(g_rmdir(old_dir), ==, 0); g_assert_cmpint(g_rmdir(photos), ==, 0);
+    g_assert_cmpint(g_rmdir(originals), ==, 0); g_assert_cmpint(g_rmdir(database_dir), ==, 0);
+    g_assert_cmpint(g_rmdir(root), ==, 0);
+    g_free(photos); g_free(originals); g_free(sha256); g_free(new_path);
+    g_free(old_path); g_free(old_dir); g_free(database_path); g_free(database_dir); g_free(root);
+}
+
+int main(int argc, char **argv)
+{
+    g_test_init(&argc, &argv, NULL);
+    g_test_add_func("/evidence-reclassification/preserve",
+        test_reclassification_preserves_identity_and_hash);
+    return g_test_run();
+}