EDIT: And after watching some of the video the presenter seems to be making the case that you should never interact with the police. And maybe even moreso -- maybe never communicate at all w/o your lawyer since there are laws you may be breaking at any point in time that you may not realize.
If prosecution doesn't care about the truth, and the police happily will comopletely fabricate out of thin air, and you regularly break laws you aren't even aware of -- it seems like talking to police is a relatively small problem.