What possible tech could be in those stock security backpacks. They're clearly part of their uniform, yet having been in security, I know that most force protection and utilities affix to a belt.

This leads me to pondering what camoflagued tech is in that bag, and what what purpose? I am thinking some type of signal jamming tool that could be used to prevent bomb detonations.

Does anybody know what's in the bag?Or what possible other applications could there be speculatively.