Ancom has introduced the SMEAD Spill Proof Secure Pocket that could be useful to law enforcement in evidence and case file storage.
To store and use bulky documents, move the elastic straps to the bottom of the pocket to insert the documents. Then, re-position the straps to the side for snag-free drawer storage. Following that, place the elastic straps over the pocket opening to keep documents in order and prevent them from falling out when moving the file.