[ZenGum]

I can't see why a solution along the lines of Jinx's idea wouldn't work.

We have restaurants. People being people, some will cut corners on hygiene, cleaning, pest control etc. Eventually (either after a complaint/tip-off or randomly) gubmint inspectors visit and tell them to either clean it up or close it down.

Why can't that work with dogs? Okay, there was one case where the mill-owners immeidately killed all the dogs, but that cost them their entire stock (i.e. lots of money) and should alert the inspectors to keep an eye on them.