Law Professor James Duane is a pragmatist at heart. This video is long but entertaining and illuminatory - an illuminating talk on the futility of discussing a suspected crime with police, whether you are guilty or innocent. He goes through all of the loopholes, all of the one-way laws that make discussions with the police an exercise in futility (for example, statements made to police can and will be used against you but cannot be used as evidence to prove your innocence).
This transcends judgment calls as to the intent of the police - in fact, a subsequent video (which I haven't yet seen) covers the same ground with Officer George Bruch of the Virginia Beach PD.
6 minutes ago