When we check lugage in, we wait till they inspect the lugage and then we put zip ties on. Just besure to cary some nail clippers to get your suit case open. I like bright tape on the suit case to make it stand out. It is a good idea. In the past we had some one accidetaly take one of our black suitcases. Fortunately we did get it back after 3 days and everything was there.