Twenty years ago I read the article "Never talk to the police." Later that year, the police came to my girlfriend's apartment and asked questions about a homicide. I was there and when they asked if they could come in, I said "No." There is no upside to allowing them in. "We'll answer any questions here" I remember saying.

We didn't have anything to hide, but you never know what law you may've broken. You never know what they may say and how you will react. The system sets up an adversarial relationship.

It would be in the best interest of law enforcement to play by the same rules as regular people.