How can someone who is upholding the law not understand it? Ignorance of the law is no excuse, is a term often bandied about towards those breaking it, it should go doubly for those upholding it. It's out there in black and white for everyone to see what their responsibilities are. It's not complicated and it's certainly not a secret.
(3) For the purposes of paragraph (1), the place where a person is living includes the premises
where they live together with any garden, yard, passage, stair, garage, outhouse or other
appurtenance of such premises.