diff --git a/app/assets/javascripts/action_btn_rules.js b/app/assets/javascripts/action_btn_rules.js
new file mode 100644
index 000000000..7202d53b6
--- /dev/null
+++ b/app/assets/javascripts/action_btn_rules.js
@@ -0,0 +1,13 @@
+$(document).on('page:load', init_action_btn_rules);
+$(document).ready(init_action_btn_rules);
+
+function init_action_btn_rules() {
+  $('.btn-send').click(function () {
+    $(this).addClass("disabled");
+    this.addEventListener("click", lock_btn);
+  });
+
+  function lock_btn(event) {
+    event.preventDefault();
+  }
+}
diff --git a/app/assets/stylesheets/dossier_show.scss b/app/assets/stylesheets/dossier_show.scss
index f4ecf7e29..dc2f76f1f 100644
--- a/app/assets/stylesheets/dossier_show.scss
+++ b/app/assets/stylesheets/dossier_show.scss
@@ -33,6 +33,7 @@
       .file {
         padding-right: 70px;
         text-align: center;
+        margin-bottom: 20px;
         .link {
           span {
             width: 100%;
diff --git a/app/views/backoffice/dossiers/show.html.haml b/app/views/backoffice/dossiers/show.html.haml
index 16d2e9d01..8b67c2bf4 100644
--- a/app/views/backoffice/dossiers/show.html.haml
+++ b/app/views/backoffice/dossiers/show.html.haml
@@ -31,6 +31,13 @@
           .row
             %div.col-lg-12.col-md-12.content
               = last_comment.body.html_safe
+          - if file = last_comment.piece_justificative
+            .row
+              %div.col-lg-12.col-md-12.file
+                = link_to file.content_url, class: 'link', target: '_blank' do
+                  %span.fa.fa-file
+                  %div
+                    = file.original_filename
           .row
             .col-lg-12.col-md-12
               %div.new-action