Police don't even have to lie to talk you into incriminating yourself. Anyone pulled over while driving? What is often the first thing the LEO says?

"Do you know why I pulled you over?" or "Do you know how fast you were going?" More often than not, you'll blurt out something incriminating, which the officer will dutifully record in their notes, in case you ever contest the citation in court.

"How many drinks have you had tonight, sir?" is another way to get yourself into trouble.