disabling hooks for some controllers

Hi, 
I builded website which has normal user area and admin user area (admin user controllers are under application/admin/).
I Separated Base controllers for user and admin area in MY_Controller.php by:

PHP Code:

class MY_Controller extends CI_Controller {
    public function __construct() {
        parent::__construct();
    }
}

class Public_Controller extends MY_Controller {
    public function __construct() {
parent::__construct();
    }
}

class Admin_Controller extends MY_Controller
{
    function __construct(){
        parent::__construct();
    }
} 


My issue is I have 'display_override' hook to minify output. I don't want it to run in Admin area.
Also I used this http://www.responsivefilemanager.com/ filemanager plugin for file management. Because of some pathes, minification library causing me issues when I open filemanager. 



Is there way to enable hooks in some areas only?