diff --git a/TICKET-104.md b/TICKET-104.md
new file mode 100644
index 0000000..bfdfc28
--- /dev/null
+++ b/TICKET-104.md
@@ -0,0 +1,53 @@
+# Ticket 104 — Lier et exploiter les extractions dans l’enquête
+
+## Objectif
+
+Rendre les fichiers produits par les outils d’analyse (OSINT, ExifTool,
+analyse EML, OCR, récupération PDF, etc.) traçables et directement
+exploitables depuis l’interface de l’enquête.
+
+## Besoins
+
+- Enregistrer chaque extraction comme une preuve traitée identifiable.
+- Conserver la référence de l’entité ou de la preuve à l’origine de
+  l’extraction.
+- Afficher les extractions liées dans la fiche de l’objet source.
+- Permettre la prévisualisation des fichiers texte avec défilement.
+- Afficher les résultats texte dans les fiches concernées sans ouvrir le
+  gestionnaire de fichiers.
+- Depuis l’onglet **Dossier**, permettre de glisser-déposer une extraction
+  sur le graphe afin de proposer sa création ou son rattachement à une
+  entité.
+- Préserver l’intégrité et le chemin relatif des fichiers produits dans
+  `02_Preuves_Traitees/Extractions`.
+
+## Contraintes d’implémentation
+
+- Utiliser les associations persistées preuve–entité existantes, sans
+  dupliquer les fichiers ni les résultats.
+- Refuser les chemins sortant du dossier de l’enquête.
+- Ne jamais exécuter automatiquement le contenu d’une extraction déposée
+  dans le graphe.
+- Conserver les commentaires Doxygen des nouvelles fonctions publiques.
+
+## Critères d’acceptation
+
+1. Une extraction terminée apparaît comme preuve traitée et indique sa
+   source.
+2. La fiche de la source liste les extractions associées.
+3. Un fichier `.txt` peut être lu dans une zone défilante depuis sa fiche et
+   depuis l’onglet Dossier.
+4. Un glisser-déposer sur le graphe ouvre une action explicite de création ou
+   d’association, sans modification silencieuse.
+5. Les associations et chemins sont conservés après fermeture et réouverture
+   de l’enquête.
+6. Les tests unitaires couvrent l’association, les chemins invalides et le
+   transfert Dossier → graphe.
+
+## Vérification
+
+- `make -j2`
+- `make test`
+- Vérification manuelle avec une extraction OSINT et un fichier texte dans
+  `02_Preuves_Traitees/Extractions`.
+
diff --git a/reports/report_meline59760_simple.json b/reports/report_meline59760_simple.json
new file mode 100644
index 0000000..e7bad57
--- /dev/null
+++ b/reports/report_meline59760_simple.json
@@ -0,0 +1 @@
+{"Instagram": {"site": {"tags": ["networking", "photo", "social"], "checkType": "message", "urlProbe": "https://www.instagram.com/api/v1/users/web_profile_info/?username={username}", "headers": {"x-ig-app-id": "936619743392459", "referer": "https://www.instagram.com/"}, "presenseStrs": ["\"biography\""], "absenceStrs": ["Sorry, this page isn't available.", "dialog-404"], "errors": {"Login \u2022 Instagram": "Login required", "\"routePath\":\"\\/\"": "Login required (rate-limited or session blocked)", "Please wait a few minutes before you try again.": "Rate limited"}, "alexaRank": 4, "urlMain": "https://www.instagram.com/", "url": "https://www.instagram.com/{username}/", "usernameClaimed": "cristiano", "usernameUnclaimed": "noonewouldeverusethis77777", "protection": ["tls_fingerprint"]}, "username": "meline59760", "keywords": [], "parsing_enabled": true, "url_main": "https://www.instagram.com/", "cookies": null, "url_user": "https://www.instagram.com/meline59760/", "url_probe": "https://www.instagram.com/api/v1/users/web_profile_info/?username=meline59760", "ids_usernames": {"meline59760": "username"}, "ids_links": [], "status": {"username": "meline59760", "site_name": "Instagram", "url": "https://www.instagram.com/meline59760/", "status": "Claimed", "ids": {"username": "meline59760", "fullname": "M\u00e9line Mignon", "id": "23685360083", "image": "https://scontent-cdg4-1.cdninstagram.com/v/t51.82787-19/724092486_18109543660784084_9144824295371353753_n.jpg?stp=dst-jpg_s320x320_tt6&efg=eyJ2ZW5jb2RlX3RhZyI6InByb2ZpbGVfcGljLmRqYW5nby4zMjAuYzIifQ&_nc_ht=scontent-cdg4-1.cdninstagram.com&_nc_cat=108&_nc_oc=Q6cZ2gHFderv5RK6nIlzUJzRyHTOdeaqKM3gUV4Vo2DVognufvoKgRywYw-bMdEu_y4IFC4&_nc_ohc=_hNKnSuKlbUQ7kNvwE9OlKd&_nc_gid=n6RBziFUv7ZEDBwwlMp9Uw&edm=AOQ1c0wBAAAA&ccb=7-5&oh=00_AQD6CBmIB7n96DndM11ZrubcUJ5rJVODRwrNSpuzpDMFRg&oe=6A67B191&_nc_sid=8b3546", "bio": "\ud83d\udc95", "facebook_uid": "17841423522510670", "is_business": "False", "is_joined_recently": "False", "is_private": "True", "is_verified": "False", "follower_count": "104", "following_count": "16", "_extractor": "Instagram GraphQL"}, "tags": ["networking", "photo", "social"], "keywords": [], "keyword_match_status": "No Keywords"}, "http_status": 200, "is_similar": false, "rank": 4}, "ChaturBate": {"site": {"protection": ["ip_reputation", "tls_fingerprint"], "tags": ["porn", "streaming", "video", "webcam"], "checkType": "status_code", "alexaRank": 3611, "urlMain": "https://chaturbate.com", "url": "https://chaturbate.com/{username}/", "usernameClaimed": "cute18cute", "usernameUnclaimed": "noonewouldeverusethis77777", "errors": {"Just a moment": "Cloudflare challenge", "challenges.cloudflare.com": "Cloudflare challenge"}}, "username": "meline59760", "keywords": [], "parsing_enabled": true, "url_main": "https://chaturbate.com", "cookies": null, "url_user": "https://chaturbate.com/meline59760/", "url_probe": "https://chaturbate.com/meline59760/", "status": {"username": "meline59760", "site_name": "ChaturBate", "url": "https://chaturbate.com/meline59760/", "status": "Claimed", "ids": {}, "tags": ["porn", "streaming", "video", "webcam"], "keywords": [], "keyword_match_status": "No Keywords"}, "http_status": 200, "is_similar": false, "rank": 3611}}
\ No newline at end of file
diff --git a/src/views/main_window.c b/src/views/main_window.c
index 53e197d..474b517 100644
--- a/src/views/main_window.c
+++ b/src/views/main_window.c
@@ -29,7 +29,7 @@
 /**
  * @brief Position initiale de la séparation verticale.
  */
-#define MAIN_WINDOW_TASK_PANEL_POSITION 430
+#define MAIN_WINDOW_TASK_PANEL_POSITION 390
 
 /**
  * @brief Titre par défaut de la fenêtre.
diff --git a/src/widgets/task_panel.c b/src/widgets/task_panel.c
index c469699..1f349bc 100644
--- a/src/widgets/task_panel.c
+++ b/src/widgets/task_panel.c
@@ -32,6 +32,7 @@ typedef struct
     GtkWidget *progress_bar;
     GtkWidget *detail_label;
     GtkWidget *cancel_button;
+    GtkWidget *remove_button;
 } TaskPanelRow;
 
 /**
@@ -188,6 +189,19 @@ static void task_panel_on_clear_clicked(
     );
 }
 
+/** @brief Retire uniquement la tâche terminée de cette ligne. */
+static void task_panel_on_remove_clicked(GtkButton *button, gpointer user_data)
+{
+    TaskPanel *task_panel = user_data;
+    BackgroundTask *task = NULL;
+    if (task_panel == NULL || task_panel->task_manager == NULL) return;
+    task = g_object_get_data(G_OBJECT(button), "labfy-background-task");
+    if (task != NULL && background_task_get_state(task) !=
+        BACKGROUND_TASK_STATE_RUNNING && background_task_get_state(task) !=
+        BACKGROUND_TASK_STATE_PENDING)
+        task_manager_remove(task_panel->task_manager, task);
+}
+
 /**
  * @brief Réagit aux changements structurels du gestionnaire.
  *
@@ -437,6 +451,9 @@ static void task_panel_row_update(
         task_row->cancel_button,
         state == BACKGROUND_TASK_STATE_RUNNING
     );
+    gtk_widget_set_visible(task_row->remove_button,
+        state != BACKGROUND_TASK_STATE_RUNNING &&
+        state != BACKGROUND_TASK_STATE_PENDING);
 
     g_clear_error(
         &error
@@ -564,6 +581,7 @@ static TaskPanelRow *task_panel_create_task_row(
         gtk_button_new_with_label(
             "Annuler"
         );
+    task_row->remove_button = gtk_button_new_with_label("Nettoyer");
 
     gtk_widget_set_halign(
         task_row->cancel_button,
@@ -593,6 +611,10 @@ static TaskPanelRow *task_panel_create_task_row(
         ),
         task_panel
     );
+    g_object_set_data(G_OBJECT(task_row->remove_button),
+        "labfy-background-task", task_row->task);
+    g_signal_connect(task_row->remove_button, "clicked",
+        G_CALLBACK(task_panel_on_remove_clicked), task_panel);
 
     gtk_box_append(
         GTK_BOX(header_box),
@@ -608,6 +630,7 @@ static TaskPanelRow *task_panel_create_task_row(
         GTK_BOX(header_box),
         task_row->cancel_button
     );
+    gtk_box_append(GTK_BOX(header_box), task_row->remove_button);
 
     task_row->progress_bar =
         gtk_progress_bar_new();
diff --git a/src/widgets/workspace.c b/src/widgets/workspace.c
index 7d410ba..a72ce7f 100644
--- a/src/widgets/workspace.c
+++ b/src/widgets/workspace.c
@@ -97,6 +97,7 @@ struct Workspace
     GtkWidget *recover_pdf_password_button;
     GtkWidget *evidence_preview_stack;
     GtkWidget *evidence_preview_status;
+    GtkWidget *evidence_preview_text;
     GtkWidget *evidence_preview_picture;
     GtkWidget *evidence_preview_video;
     GtkWidget *evidence_preview_expand_button;
@@ -1425,6 +1426,12 @@ Workspace *workspace_new(void)
     gtk_video_set_autoplay(GTK_VIDEO(workspace->evidence_preview_video), FALSE);
     gtk_stack_add_named(GTK_STACK(workspace->evidence_preview_stack),
         workspace->evidence_preview_status, "status");
+    workspace->evidence_preview_text = gtk_text_view_new();
+    gtk_text_view_set_editable(GTK_TEXT_VIEW(workspace->evidence_preview_text), FALSE);
+    gtk_text_view_set_wrap_mode(GTK_TEXT_VIEW(workspace->evidence_preview_text), GTK_WRAP_WORD_CHAR);
+    gtk_widget_set_vexpand(workspace->evidence_preview_text, TRUE);
+    gtk_stack_add_named(GTK_STACK(workspace->evidence_preview_stack),
+        workspace->evidence_preview_text, "text");
     gtk_stack_add_named(GTK_STACK(workspace->evidence_preview_stack),
         workspace->evidence_preview_picture, "image");
     gtk_stack_add_named(GTK_STACK(workspace->evidence_preview_stack),
@@ -2880,7 +2887,25 @@ void workspace_set_evidence_preview(Workspace *workspace,
     }
     else
     {
-        char *message = g_strdup_printf(
+        char *message = NULL;
+        if (mime_type != NULL && g_strcmp0(mime_type, "text/plain") == 0)
+        {
+            char *contents = NULL;
+            gsize length = 0;
+            if (g_file_get_contents(file_path, &contents, &length, NULL))
+            {
+                GtkTextBuffer *buffer = gtk_text_view_get_buffer(
+                    GTK_TEXT_VIEW(workspace->evidence_preview_text));
+                gtk_text_buffer_set_text(buffer, contents, (gint) MIN(length, 200000));
+                gtk_stack_set_visible_child_name(GTK_STACK(
+                    workspace->evidence_preview_stack), "text");
+                workspace->evidence_preview_is_video = FALSE;
+                g_free(contents);
+                goto text_preview_ready;
+            }
+            g_free(contents);
+        }
+        message = g_strdup_printf(
             "Aperçu indisponible pour %s%s%s.",
             display_name != NULL ? display_name : "ce fichier",
             error != NULL ? " : " : "",
@@ -2892,6 +2917,7 @@ void workspace_set_evidence_preview(Workspace *workspace,
         g_free(message);
         goto cleanup;
     }
+text_preview_ready:
     workspace->evidence_preview_path = g_strdup(file_path);
     gtk_widget_set_sensitive(workspace->evidence_preview_expand_button,
         workspace->evidence_preview_path != NULL);