I watched the videos and the second one especially is funny.
Worth watching if you think you could not give yourself away in a police interview.
But the lecturers claim that no one has ever talked themselves out of being arrested is simply untrue.
When I wore the blue I didn't arrest many people because of what they said to me.
Brilliant defenses like
'no I'm not him, he lives next door'
'no that's my brother, he's in the kitchen'
'no i wasn't involved in any fight down the road, I've just come out of that pub where I was all night. The staff will confirm that.

Of course if you ARE guilty. Shut up. They shouldn't even know what your voice sounds like if they only meet you in the interview room.

The Sock