There are zippers that cannot be closed like that - the zipper keys lock is fixed on the bag[1]; you can open it with a pen, but you cannot close it again - so

There are zippers that cannot be closed like that - the zipper keys lock is fixed on the bag[1]; you can open it with a pen, but you cannot close it again - so you can see that it was tampered with. [1] https://www.youtube.com/watch?v=7t5MPTpy3xU https://www.youtube.com/watch?v=7t5MPTpy3xU