Stop talking Bull, flying bull.
Rules is rules. Police ops is no different from any other form of commercial operation. It isn't the military in a different dress remember.
Scum/crims/missing persons are not worth bending rules for. If you start getting captions or planning to land in a field at night instead of burning the extra fuel to get back home, you're not a pro - bro! You are a risk taker and your crew would not thank you for it long term.
Attempting to land into an unauthorised LZ at night RATHER than going home is far too dangerous an option and you know it.....
In the UK we call this: Pressonitis - and it kills inocent people.
Who knows - this may have been the cause of this crash
