diff --git a/lib/Alchemy/Phrasea/Application.php b/lib/Alchemy/Phrasea/Application.php
index a95f75889e..9f69b17b5e 100644
--- a/lib/Alchemy/Phrasea/Application.php
+++ b/lib/Alchemy/Phrasea/Application.php
@@ -15,6 +15,7 @@ use Alchemy\Geonames\GeonamesServiceProvider;
 use Alchemy\Phrasea\Application\Helper\AclAware;
 use Alchemy\Phrasea\Application\Helper\ApplicationBoxAware;
 use Alchemy\Phrasea\Application\Helper\AuthenticatorAware;
+use Alchemy\Phrasea\Authorization\AuthorizationServiceProvider;
 use Alchemy\Phrasea\Cache\Factory;
 use Alchemy\Phrasea\Cache\Manager;
 use Alchemy\Phrasea\Core\Event\Subscriber\BasketSubscriber;
@@ -191,6 +192,7 @@ class Application extends SilexApplication
         $this->register(new ACLServiceProvider());
         $this->register(new APIServiceProvider());
         $this->register(new AuthenticationManagerServiceProvider());
+        $this->register(new AuthorizationServiceProvider());
         $this->register(new BrowserServiceProvider());
         $this->register(new ConvertersServiceProvider());
         $this->register(new CSVServiceProvider());
diff --git a/lib/Alchemy/Phrasea/Authorization/AuthorizationChecker.php b/lib/Alchemy/Phrasea/Authorization/AuthorizationChecker.php
new file mode 100644
index 0000000000..2e434c2500
--- /dev/null
+++ b/lib/Alchemy/Phrasea/Authorization/AuthorizationChecker.php
@@ -0,0 +1,36 @@
+<?php
+/*
+ * This file is part of Phraseanet
+ *
+ * (c) 2005-2015 Alchemy
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace Alchemy\Phrasea\Authorization;
+
+use Symfony\Component\Security\Core\Authentication\Token\TokenInterface;
+use Symfony\Component\Security\Core\Authorization\AccessDecisionManager;
+
+class AuthorizationChecker
+{
+    /** @var AccessDecisionManager */
+    private $accessDecisionManager;
+    /** @var TokenInterface */
+    private $token;
+
+    public function __construct(AccessDecisionManager $accessDecisionManager, TokenInterface $token)
+    {
+        $this->accessDecisionManager = $accessDecisionManager;
+        $this->token = $token;
+    }
+
+    public function isGranted($attributes, $object = null)
+    {
+        if (!is_array($attributes)) {
+            $attributes = [$attributes];
+        }
+
+        return $this->accessDecisionManager->decide($this->token, $attributes, $object);
+    }
+}
diff --git a/lib/Alchemy/Phrasea/Authorization/AuthorizationServiceProvider.php b/lib/Alchemy/Phrasea/Authorization/AuthorizationServiceProvider.php
new file mode 100644
index 0000000000..31b25568c0
--- /dev/null
+++ b/lib/Alchemy/Phrasea/Authorization/AuthorizationServiceProvider.php
@@ -0,0 +1,52 @@
+<?php
+/*
+ * This file is part of Phraseanet
+ *
+ * (c) 2005-2015 Alchemy
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace Alchemy\Phrasea\Authorization;
+
+use Alchemy\Phrasea\Application as PhraseaApplication;
+use Silex\Application;
+use Silex\ServiceProviderInterface;
+use Symfony\Component\Security\Core\Authentication\Token\AnonymousToken;
+use Symfony\Component\Security\Core\Authentication\Token\PreAuthenticatedToken;
+use Symfony\Component\Security\Core\Authorization\AccessDecisionManager;
+
+class AuthorizationServiceProvider implements ServiceProviderInterface
+{
+    public function register(Application $app)
+    {
+        $app['phraseanet.security_token'] = $app->share(function (PhraseaApplication $app) {
+            $user = $app['authentication']->getUser();
+
+            if ($user instanceof \User_Adapter) {
+                return new PreAuthenticatedToken((string)$user->get_id(), null, 'fake', ['ROLE_USER']);
+            }
+
+            return new AnonymousToken('fake', 'anon.', []);
+        });
+
+        $app['phraseanet.access_manager'] = $app->share(function (PhraseaApplication $app) {
+            return new AccessDecisionManager($app['phraseanet.voters']);
+        });
+        $app['phraseanet.voters'] = $app->share(function () {
+            return [];
+        });
+
+        $app['phraseanet.authorization_checker'] = $app->share(function (PhraseaApplication $app) {
+            return new AuthorizationChecker(
+                $app['phraseanet.access_manager'],
+                $app['phraseanet.security_token']
+            );
+        });
+    }
+
+    public function boot(Application $app)
+    {
+        // Nothing to do
+    }
+}
diff --git a/lib/Alchemy/Phrasea/Authorization/BaseVoter.php b/lib/Alchemy/Phrasea/Authorization/BaseVoter.php
new file mode 100644
index 0000000000..19b1f38261
--- /dev/null
+++ b/lib/Alchemy/Phrasea/Authorization/BaseVoter.php
@@ -0,0 +1,78 @@
+<?php
+/*
+ * This file is part of Phraseanet
+ *
+ * (c) 2005-2015 Alchemy
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace Alchemy\Phrasea\Authorization;
+
+use Alchemy\Phrasea\Application;
+use Symfony\Component\Security\Core\Authentication\Token\TokenInterface;
+use Symfony\Component\Security\Core\Authorization\Voter\VoterInterface;
+
+abstract class BaseVoter implements VoterInterface
+{
+    private $supportedAttributes;
+    private $supportedClass;
+
+    /** @var Application */
+    private $app;
+
+    public function __construct(Application $app, array $attributes, $supportedClass)
+    {
+        $this->app = $app;
+        $this->supportedAttributes = $attributes;
+        $this->supportedClass = $supportedClass;
+
+        if (!is_callable([$this, 'isGranted'])) {
+            throw new \LogicException('Subclasses should implement a "isGranted" method');
+        }
+    }
+
+    public function supportsAttribute($attribute)
+    {
+        return in_array($attribute, $this->supportedAttributes);
+    }
+
+    public function supportsClass($class)
+    {
+        $supportedClass = $this->supportedClass;
+        if ($class == $supportedClass || is_subclass_of($class, $supportedClass)) {
+            return true;
+        }
+
+        return false;
+    }
+
+    public function vote(TokenInterface $token, $object, array $attributes)
+    {
+        if (!$object || !$this->supportsClass(get_class($object))) {
+            return self::ACCESS_ABSTAIN;
+        }
+
+        $user = (ctype_digit($token->getUser())) ? new \User_Adapter((int) $token->getUser(), $this->app) : null;
+
+        foreach ($attributes as $attribute) {
+            $attribute = strtolower($attribute);
+
+            if ($this->supportsAttribute($attribute)) {
+                $isGranted = call_user_func([$this, 'isGranted'], $attribute, $object, $user);
+
+                return $isGranted ? self::ACCESS_GRANTED : self::ACCESS_DENIED;
+            }
+        }
+
+        return self::ACCESS_ABSTAIN;
+    }
+
+    /**
+     * @param string             $attribute
+     * @param object             $object
+     * @param \User_Adapter|null $user
+     * @return bool
+     */
+    //abstract protected function isGranted($attribute, $object, \User_Adapter $user = null);
+}
diff --git a/templates/web/prod/index.html.twig b/templates/web/prod/index.html.twig
index bff5ed5fb2..61207bd585 100644
--- a/templates/web/prod/index.html.twig
+++ b/templates/web/prod/index.html.twig
@@ -161,6 +161,14 @@
 
 {% block content %}
 
+    {% set workzone_plugins = [] %}
+    {% for plugin in app['plugin.workzone'].keys() %}
+        {% if app['phraseanet.authorization_checker'].isGranted('VIEW', app['plugin.workzone'][plugin]) %}
+            {% set workzone_plugins = workzone_plugins|merge({(plugin): app['plugin.workzone'][plugin]}) %}
+        {% endif %}
+    {% endfor %}
+
+    {% set search_datas = module_prod.get_search_datas() %}
     <div style="position:absolute; top:0; left:0; right:0; bottom:0; background-color:#1a1a1a; z-index:32766;">
         <div id="loader" style="top:200px; margin:0 auto; -webkit-border-radius:5px; -moz-border-radius:5px; border-radius:5px; background-color:#CCCCCC; position:relative; margin:0 auto; text-align:center; width:400px; height:100px; padding:20px; z-index:32767;">
             <div style="margin:0 10px 10px; font-family:Helvetica,Arial,sans-serif; font-size:18px; color:#1A1A1A; text-align:left;">Phraseanet</div>
@@ -195,14 +203,9 @@
                             {% include 'prod/tab_thesaurus.html.twig' with {has_access_to_module: app.getAclForUser(app.getAuthenticatedUser()).has_access_to_module('thesaurus')} %}
                         {% endif %}
                     {% endblock %}
-                    {% set workzone_plugins = app['plugin.workzone'] %}
-                    {% set workzone_plugins_class = 'single-plugin' %}
-                    {% if workzone_plugins.keys()|length > 1 %}
-                        {% set workzone_plugins_class = 'multiple-plugin' %}
-                    {% endif %}
-                    <div id="plugins" class="PNB {{ workzone_plugins_class }}" style="top:52px;">
-                        {% for plugin in workzone_plugins.keys() %}
-                            {% include workzone_plugins[plugin].getWorkzoneTemplate() with {'app': app, 'plugin_id': plugin} only %}
+                    <div id="plugins" class="PNB {{ workzone_plugins|length > 1 ? 'multiple-plugin' : 'single-plugin' }}" style="top:52px;">
+                        {% for pluginId, plugin in workzone_plugins %}
+                            {% include plugin.getWorkzoneTemplate() with {'app': app, 'plugin_id': pluginId} only %}
                         {% endfor %}
                     </div>
                 </div>
diff --git a/templates/web/prod/tab_headers.html.twig b/templates/web/prod/tab_headers.html.twig
index ebf3f0b48b..05c9bdbc6a 100644
--- a/templates/web/prod/tab_headers.html.twig
+++ b/templates/web/prod/tab_headers.html.twig
@@ -16,7 +16,7 @@
                     </a>
                 </li>
             {% endif %}
-            {% if app['plugin.workzone'].keys() is not empty %}
+            {% if workzone_plugins is not empty %}
                 <li>
                     <a href="#plugins" class="WZplugins">
                         <img src="/skins/icons/plugins.png" title="{{ 'phraseanet:: plugin.workzone' | trans }}"/>