diff --git a/bda/templates/bda-attrib-extra.html b/bda/templates/bda-attrib-extra.html
index 8ffccf34..4286dfc9 100644
--- a/bda/templates/bda-attrib-extra.html
+++ b/bda/templates/bda-attrib-extra.html
@@ -2,7 +2,7 @@
 
 {% block extracontent %}
 
-<h1>Attribution (détails)</h1>
+<h1>Attributions (détails)</h1>
 <h2>Token :</h2>
 <pre>{{ token }}</pre>
 <h2>Placés : {{ total_slots }} ; Déçus : {{ total_losers }}</h2>
diff --git a/bda/templates/bda-attrib.html b/bda/templates/bda-attrib.html
index f0bfd955..81540594 100644
--- a/bda/templates/bda-attrib.html
+++ b/bda/templates/bda-attrib.html
@@ -7,7 +7,12 @@
 
 {% block realcontent %}
 
-<h1>Attribution</h1>
+<h1>Attributions</h1>
+
+<br />
+<h2 class="important">Pensez à désactiver le lancement du tirage dès maintenant dans
+l'<a href="{% url "admin:index" %}">interface admin</a>&#8239;</h2>
+
 <h2>Token :</h2>
 <pre>{{ token }}</pre> 
 <h2>Placés : {{ total_slots }} ; Déçus : {{ total_losers }}</h2>
diff --git a/bda/templates/bda-token.html b/bda/templates/bda-token.html
index cbe72a76..b05a5b0d 100644
--- a/bda/templates/bda-token.html
+++ b/bda/templates/bda-token.html
@@ -8,6 +8,6 @@
     <div>
     {{ form.token }}
     </div>
-    <input type="submit" value="Go" />
+    <input type="submit" onclick="return confirm('Voulez vous lancer le Tirage maintenant ?\n\nCECI REMETTRA À ZÉRO TOUTES LES DONNÉES si le tirage a déjà été lancé.')" value="Go" />
 </form>
 {% endblock %}
diff --git a/bda/templates/tirage-failed.html b/bda/templates/tirage-failed.html
new file mode 100644
index 00000000..a9f7e7d4
--- /dev/null
+++ b/bda/templates/tirage-failed.html
@@ -0,0 +1,9 @@
+{% extends "base_title.html" %}
+
+{% block realcontent %}
+<h2>Raté, le tirage ne peut pas être lancé&#8239;!</h2>
+
+<p>Si vous savez ce que vous faites, vous pouvez autoriser le lancement du
+tirage dans l'<a href="{% url "admin:index" %}">interface admin</a>.
+Pensez à le désactiver à nouveau ensuite.</p>
+{% endblock %}
diff --git a/bda/views.py b/bda/views.py
index 1eab066d..7c10e0f2 100644
--- a/bda/views.py
+++ b/bda/views.py
@@ -181,11 +181,11 @@ def inscription(request, tirage_id):
 
 def do_tirage(request, tirage_id):
     tirage_elt = get_object_or_404(Tirage, id=tirage_id)
+    if not tirage_elt.enable_do_tirage:
+        return render(request, "tirage-failed.html", {'tirage': tirage_elt})
     form = TokenForm(request.POST)
     if not form.is_valid():
         return tirage(request)
-    tirage_elt.token = form.cleaned_data['token']
-    tirage_elt.save()
     start = time.time()
     data = {}
     shows = tirage_elt.spectacle_set.select_related().all()
@@ -235,16 +235,15 @@ def do_tirage(request, tirage_id):
         members2 = members2.items()
         data["members2"] = sorted(members2, key=lambda m: m[0].user.last_name)
         # À partir d'ici, le tirage devient effectif
-        # FIXME: Établir les conditions de validations (formulaire ?)
-        # cf. issue #32
-        if False:
-            Attribution.objects.filter(
-                    spectacle__tirage=tirage_elt
-                ).delete()
-            for (show, members, _) in results:
-                for (member, _, _, _) in members:
-                    attrib = Attribution(spectacle=show, participant=member)
-                    attrib.save()
+        Attribution.objects.filter(spectacle__tirage=tirage_elt).delete()
+        tirage_elt.tokens += "%s\n\"\"\"%s\"\"\"\n" % (
+                timezone.now().strftime("%y-%m-%d %H:%M:%S"), 
+                form.cleaned_data['token'])
+        tirage_elt.save()
+        for (show, members, _) in results:
+            for (member, _, _, _) in members:
+                attrib = Attribution(spectacle=show, participant=member)
+                attrib.save()
         return render(request, "bda-attrib-extra.html", data)
     else:
         return render(request, "bda-attrib.html", data)
diff --git a/gestioncof/static/css/cof.css b/gestioncof/static/css/cof.css
index d59e6ded..6cbc6c5d 100644
--- a/gestioncof/static/css/cof.css
+++ b/gestioncof/static/css/cof.css
@@ -246,6 +246,15 @@ fieldset legend {
  background-color: transparent;
 }
 
+.important {
+ font-weight: bold;
+ color: #F90;
+}
+
+.important a {
+ color: #F90;
+}
+
 #main form ul.errorlist li {
  font-weight: bold;
  color: #B00000;