diff --git a/inc/computer.class.php b/inc/computer.class.php
index a6a70ac..d03f5d0 100644
--- a/inc/computer.class.php
+++ b/inc/computer.class.php
@@ -54,5 +54,18 @@ class PluginExampleComputer extends CommonDBTM {
       echo '</table>';
    }
 
+   // implement "item_can" hook (9.2) for Computer
+   static function restrict(Computer $comp) {
+      // no right to see computer from group 1
+      if (isset($comp->right)) {
+         // call from ConnDBTM::can method, filter for current item
+         if ($comp->getField('groups_id') == 1) {
+            $comp->right = false;
+         }
+      } else {
+         // called from Search::addDefaultWhere method, return additional condition
+         $comp->add_where = "glpi_computers.groups_id != 1";
+      }
+   }
 }
 
diff --git a/setup.php b/setup.php
index 6f4ec06..ffb81f8 100755
--- a/setup.php
+++ b/setup.php
@@ -101,7 +101,10 @@ function plugin_init_example() {
    $PLUGIN_HOOKS['pre_item_update']['example'] = array('Computer' => 'plugin_pre_item_update_example');
    $PLUGIN_HOOKS['item_update']['example']     = array('Computer' => 'plugin_item_update_example');
 
-   $PLUGIN_HOOKS['item_empty']['example']     = array('Computer' => 'plugin_item_empty_example');
+   $PLUGIN_HOOKS['item_empty']['example']      = array('Computer' => 'plugin_item_empty_example');
+
+   // Restrict right
+   $PLUGIN_HOOKS['item_can']['example']        = ['Computer' => ['PluginExampleComputer', 'restrict']];
 
    // Example using a method in class
    $PLUGIN_HOOKS['pre_item_add']['example']    = array('Computer' => array('PluginExampleExample',
@@ -181,7 +184,7 @@ function plugin_init_example() {
    $PLUGIN_HOOKS['display_login']['example'] = "plugin_example_display_login";
    $PLUGIN_HOOKS['infocom']['example'] = "plugin_example_infocom_hook";
 
-   // pre_show and post_show for tabs and items, 
+   // pre_show and post_show for tabs and items,
    // see PluginExampleShowtabitem class for implementation explanations
    $PLUGIN_HOOKS['pre_show_tab']['example'] = array( 'PluginExampleShowtabitem',  'pre_show_tab' );
    $PLUGIN_HOOKS['post_show_tab']['example'] = array( 'PluginExampleShowtabitem',  'post_show_tab' );