A few rules.
1. If the cops show up at your door always step outside and CLOSE THE DOOR behind you, then talk to them.
2. Never ever let a cop inside your home without a search warrant. EVER.
3. If you have an aggressive dog lock them in a room somewhere.
My Great Pyrennes are not aggressive however they are very judgmental of character. If they didn’t like a particular person (including a cop) look the eff out. I would never expose them to that though. If the cops were coming back with a warrant I would lock them up outside in their paddock.
Excellent, safe, time-proven, and practical advice.
I’s suggest taking a running video cam out on the porch with you (before vidcams are deemed assault weapons by the BATF).
Regarding #3, some people have done just that. There are STILL reports of cops entering bathrooms, bedrooms and other rooms where they are TOLD the family dog is present and shooting it anyway.