diff --git a/code/SecurityAdmin.php b/code/SecurityAdmin.php
index bdce356f..f54fc3fc 100644
--- a/code/SecurityAdmin.php
+++ b/code/SecurityAdmin.php
@@ -276,6 +276,18 @@ class SecurityAdmin extends LeftAndMain implements PermissionProvider {
 			)
 		);
 	}
+	
+	/**
+	 * the permissions represented in the $codes will not appearing in the form
+	 * containning {@link PermissionCheckboxSetField} so as not to be checked / unchecked.
+	 * @param $codes array of permission code
+	 * @return void
+	 */
+	static function hide_permissions($codes){
+		foreach($codes as $code){
+			Permission::add_to_hidden_permissions($code);
+		}
+	}
 }
 
 ?>
diff --git a/tests/SecurityAdminTest.php b/tests/SecurityAdminTest.php
index 4522c7eb..035c9a5e 100644
--- a/tests/SecurityAdminTest.php
+++ b/tests/SecurityAdminTest.php
@@ -36,6 +36,16 @@ class SecurityAdminTest extends FunctionalTest {
 		$this->assertEquals($lines[1], '', "Empty export only has no content row");
 	}
 	
+	function testHidePermissions() {
+		$permissionCheckboxSet = new PermissionCheckboxSetField('Permissions','Permissions','Permission','GroupID');
+		$this->assertContains('CMS_ACCESS_CMSMain', $permissionCheckboxSet->Field());
+		$this->assertContains('CMS_ACCESS_AssetAdmin', $permissionCheckboxSet->Field());
+		
+		SecurityAdmin::hide_permissions(array('CMS_ACCESS_CMSMain','CMS_ACCESS_AssetAdmin'));
+		$this->assertNotContains('CMS_ACCESS_CMSMain', $permissionCheckboxSet->Field());
+		$this->assertNotContains('CMS_ACCESS_AssetAdmin', $permissionCheckboxSet->Field());
+	}
+	
 }
 
 ?>
\ No newline at end of file