Police should arrive in FRONT of the house with lights going and in uniform.
Did the Lt. arrive in plain clothes in a unmarked car? Lots of questions here. Hope he recovers.
Police Look-alike criminals are not new.
They could call her and tell here they are outside and going to be looking around the house, too. That would be both reassuring to her and safety for the cop. It would be common curtesy.
Years ago, I had the police call me in the middle of the night asking if a particular tag and car belonged to me.
They were looking for a runaway, and they damned sure didn’t want to banging on the door in the middle of the night. Smart move.