I think that’s been the law everywhere I’ve lived, too, but not always followed…

I’ve seen landlords put these things on doors, too, and use them to allow entrance to anyone they think has a reason to be inside, whether the resident knows and consents or not.

I was watching a friend’s dogs while she was on vacation when the batteries in her door lock died. I had to climb in a back window to get inside and feed them. Luckily, there was a back door with a dumb lock, but I had to get inside first and borrow her keys for that to help.

Not to mention prion diseases.