"Actually, I *WANT* a force that KNOCKS, door to door."
Knock on MY door without a search warrant and start asking a bunch of questions? You'll get a door in your face.
If you're pleasant. If you're unpleasant you may get worse.
Hank
May wish to re-read my post; I indicated they knock to ASK a simple question; no more, no less.
Giving the 3rd degree? No, I would be in the ‘mood’ to assist either.
IMO, the easiest/best solution is to offer a bounty per head ($25??), paid upon pick-up/arrest. Open season, 365 :)