public function isAllowedPeopleIdSingleContactDisplay($id) {

        if ($id == 0) {
            return false;
        }

        $allowedIDs = Config::get('lasallecrmcontact.single_contact_display_people_id_allowed');

        foreach ($allowedIDs as $allowedID) {
            if ($allowedID == $id) {
                return true;
            }
        }
        return false;
    }