diff --git a/DependencyInjection/ChillActivityExtension.php b/DependencyInjection/ChillActivityExtension.php
index 613fa7493..9567514aa 100644
--- a/DependencyInjection/ChillActivityExtension.php
+++ b/DependencyInjection/ChillActivityExtension.php
@@ -78,9 +78,10 @@ class ChillActivityExtension extends Extension implements PrependExtensionInterf
     {
         $container->prependExtensionConfig('security', array(
            'role_hierarchy' => array(
-              ActivityVoter::UPDATE => array(ActivityVoter::SEE),
-              ActivityVoter::CREATE => array(ActivityVoter::SEE),
-              ActivityVoter::DELETE => array(ActivityVoter::SEE)
+              ActivityVoter::UPDATE => array(ActivityVoter::SEE_DETAILS),
+              ActivityVoter::CREATE => array(ActivityVoter::SEE_DETAILS),
+              ActivityVoter::DELETE => array(ActivityVoter::SEE_DETAILS),
+              ActivityVoter::SEE_DETAILS => array(ActivityVoter::SEE)
            )
         ));
     }
diff --git a/Resources/views/Timeline/activity_person_context.html.twig b/Resources/views/Timeline/activity_person_context.html.twig
index 686219619..21b704f6d 100644
--- a/Resources/views/Timeline/activity_person_context.html.twig
+++ b/Resources/views/Timeline/activity_person_context.html.twig
@@ -1,3 +1,5 @@
+{% import 'ChillActivityBundle:ActivityReason:macro.html.twig' as m %}
+
 <div>
     <h3>{{ activity.date|localizeddate('long', 'none') }}<span class="activity"> / {{ 'Activity'|trans }}</span></h3>
     <div class="statement">
@@ -9,5 +11,20 @@
         ) }}</span> <span class="links"><a href="{{ path('chill_activity_activity_show', 
         { 'person_id': person.id, 'id': activity.id} ) }}">{{ 'Show the activity'|trans }}</a></span>
         
+        {% if is_granted(constant('Chill\\ActivityBundle\\Security\\Authorization\\ActivityVoter::SEE_DETAILS'), activity) %}
+        <dl class="chill_view_data">
+            <dt class="inline">{{ 'Remark'|trans }}</dt>
+            <dd>{% if activity.remark is empty %}{{ 'No remarks'|trans }}{% else %}<blockquote class="chill-user-quote">{{ activity.remark|nl2br }}</blockquote>{% endif %}</dd>
+
+            <dt class="inline">{{ 'Reasons'|trans }}</dt>
+            {%- if activity.reasons is empty -%}
+            <dd><span class="chill-no-data-statement">{{ 'No reason associated'|trans }}</span></dd>
+            {%- else -%}
+            <dd>{% for r in activity.reasons %}{{ m.reason(r) }} {% endfor %}</dd>
+            {%- endif -%}
+
+        </dl>
+        {% endif %}
+        
     </div>
 </div>
diff --git a/Security/Authorization/ActivityStatsVoter.php b/Security/Authorization/ActivityStatsVoter.php
index 66788041a..dc8832635 100644
--- a/Security/Authorization/ActivityStatsVoter.php
+++ b/Security/Authorization/ActivityStatsVoter.php
@@ -21,7 +21,7 @@ namespace Chill\ActivityBundle\Security\Authorization;
 
 use Chill\MainBundle\Security\Authorization\AbstractChillVoter;
 use Chill\MainBundle\Security\Authorization\AuthorizationHelper;
-use Chill\MainBundle\Security\ProvideRoleInterface;
+use Chill\MainBundle\Security\ProvideRoleHierarchyInterface;
 use Chill\MainBundle\Entity\Center;
 
 /**
@@ -29,7 +29,7 @@ use Chill\MainBundle\Entity\Center;
  *
  * @author Julien Fastré <julien.fastre@champs-libres.coop>
  */
-class ActivityStatsVoter extends AbstractChillVoter implements ProvideRoleInterface
+class ActivityStatsVoter extends AbstractChillVoter implements ProvideRoleHierarchyInterface
 {
     const STATS = 'CHILL_ACTIVITY_STATS';
     const LISTS  = 'CHILL_ACTIVITY_LIST';
@@ -74,4 +74,8 @@ class ActivityStatsVoter extends AbstractChillVoter implements ProvideRoleInterf
         return $this->getSupportedAttributes();
     }
 
+    public function getRolesWithHierarchy()
+    {
+        return [ 'Activity' => $this->getRoles() ];
+    }
 }
diff --git a/Security/Authorization/ActivityVoter.php b/Security/Authorization/ActivityVoter.php
index 4836b5665..b4d0feb2f 100644
--- a/Security/Authorization/ActivityVoter.php
+++ b/Security/Authorization/ActivityVoter.php
@@ -32,6 +32,7 @@ class ActivityVoter extends AbstractChillVoter implements ProvideRoleHierarchyIn
 {
     const CREATE = 'CHILL_ACTIVITY_CREATE';
     const SEE    = 'CHILL_ACTIVITY_SEE';
+    const SEE_DETAILS = 'CHILL_ACTIVITY_SEE_DETAILS';
     const UPDATE = 'CHILL_ACTIVITY_UPDATE';
     const DELETE = 'CHILL_ACTIVITY_DELETE';
     
@@ -48,7 +49,8 @@ class ActivityVoter extends AbstractChillVoter implements ProvideRoleHierarchyIn
     
     protected function getSupportedAttributes()
     {
-        return array(self::CREATE, self::SEE, self::UPDATE, self::DELETE);
+        return array(self::CREATE, self::SEE, self::UPDATE, self::DELETE, 
+            self::SEE_DETAILS);
     }
 
     protected function getSupportedClasses()