Im a Police Officer but won't comment on the Police not arresting people that has arisen on this thread I don't think the powers that be would be too impressed.
I've been in the job 13 years. did 3 years in uniform before moving to an Intelligence unit job because of an injury. Then moved to Special Branch where I worked as a short while as a Research and Development Officer within their Intel unit, before starting a position as a Technical Surveillance Officer, building cameras into things, capturing surveillance images with manned and unmanned equipment, also taught image handling and trained other Officers in Photography, got to do some great things and work in some cool places. I now work in a Marine and Aviation unit, Policing small airfields and Ports (marinas and commercial Ports) from a national security perspective also involves working as back up crew on Police Marine unit vessels, High speed Rhib and Launch (ex-RNLI Tamar class boat).