diff --git a/administrator/views/hierarchys/view.csv.php b/administrator/views/hierarchys/view.csv.php
index edfe8b6..f246063 100644
--- a/administrator/views/hierarchys/view.csv.php
+++ b/administrator/views/hierarchys/view.csv.php
@@ -23,12 +23,38 @@ class HierarchyViewHierarchys extends TjExportCsv
 	/**
 	 * Display the Hierarchy view
 	 *
-	 * @param   string  $tpl  The name of the template file to parse; automatically searches through the template paths.
+	 * @param   STRING  $tpl  template name
 	 *
-	 * @return  void
+	 * @return  Object|Boolean in case of success instance and failure - boolean
+	 *
+	 * @since   1.0
 	 */
 	public function display($tpl = null)
 	{
-		parent::display();
+		$input = JFactory::getApplication()->input;
+		$user  = JFactory::getUser();
+		$userAuthorisedExport = $user->authorise('core.export', 'com_hierarchy');
+
+		if ($userAuthorisedExport !== true || !$user->id)
+		{
+			// Redirect to the list screen.
+			$redirect = JRoute::_('index.php?option=com_hierarchy&view=hierarchys', false);
+			JFactory::getApplication()->redirect($redirect, JText::_('JERROR_ALERTNOAUTHOR'));
+
+			return false;
+		}
+		else
+		{
+			if ($input->get('task') == 'download')
+			{
+				$fileName = $input->get('file_name');
+				$this->download($fileName);
+				JFactory::getApplication()->close();
+			}
+			else
+			{
+				parent::display();
+			}
+		}
 	}
 }
diff --git a/administrator/views/hierarchys/view.html.php b/administrator/views/hierarchys/view.html.php
index 43709a0..322de1e 100755
--- a/administrator/views/hierarchys/view.html.php
+++ b/administrator/views/hierarchys/view.html.php
@@ -105,21 +105,25 @@ protected function addToolbar()
 
 		// Import Csv export button
 		jimport('techjoomla.tjtoolbar.button.csvexport');
-
+		$user      = JFactory::getUser();
+		$canExportCSV = $user->authorise('core.export', 'com_tjreports');
 		$bar = JToolBar::getInstance('toolbar');
 
 		$state = $this->get('State');
 		$canDo = HierarchyHelper::getActions($state->get('filter.category_id'));
 
-		$message = array();
-		$message['success'] = JText::_("COM_HIERARCHY_EXPORT_FILE_SUCCESS");
-		$message['error'] = JText::_("COM_HIERARCHY_EXPORT_FILE_ERROR");
-		$message['inprogress'] = JText::_("COM_HIERARCHY_EXPORT_FILE_NOTICE");
-		$message['btn-name'] = JText::_("COM_HIERARCHY_EXPORT_CSV");
-
-		if ($canDo->get('core.csv.export'))
+		if (!empty($this->items) && $canExportCSV === true && $user->id)
 		{
-			$bar->appendButton('CsvExport',  $message);
+			$message = array();
+			$message['success'] = JText::_("COM_HIERARCHY_EXPORT_FILE_SUCCESS");
+			$message['error'] = JText::_("COM_HIERARCHY_EXPORT_FILE_ERROR");
+			$message['inprogress'] = JText::_("COM_HIERARCHY_EXPORT_FILE_NOTICE");
+			$message['btn-name'] = JText::_("COM_HIERARCHY_EXPORT_CSV");
+
+			if ($canDo->get('core.csv.export'))
+			{
+				$bar->appendButton('CsvExport',  $message);
+			}
 		}
 
 		JToolBarHelper::title(JText::_('COM_HIERARCHY_TITLE_HIERARCHYS'), 'list');