Yes, it is useful stuff and novel to Law Students. The Copper was pretty tame and came up with rather lame stuff. The Professor was, in my case, telling Grandma how to suck eggs. Been there, done that a zillion times.* Basic Rule.....never talk to a Copper. There are very few things here he can force you to do. Name, address and driver's licence. In some circumstances, 'blow here.' 'take this drug test,' and apart from that sort of stuff, tell 'em (very politely) to get fucked.Useful info there. Innocent people can get tangled up in an investigation—and can inadvertently dig themselves in deeper. Watch the video!
I waved my bloke goodbye with no expectation that I'd ever see him again or even waste time sending him a bill. A couple of days later, he turns up at my office and puts a large handful of what he said were sapphires on my desk as payment and in gratitude.