Nah, we've tackled this before. Other entities exist with special legislated/regulated powers and who have armament and training beyond just sidearms. Two that come immediately to mind are the Parliamentary Protective Service (not cops, not peace officers, not licensed security guards, yet have C8s and active shooter training) and the emergency response teams at the various nuclear sites- I can't recall the specifics form when I did a regulatory dive on them but they're regulated under one of the acts pertaining to nuke stuff, and if recollection serves may have super limited peace officer status.