@MRD: If I understand Fragony correctly this is just the police trying to get more meaningful stats about the people who regularly camp out over at their place. They're still presented with the full bill for the trouble.

As for IQ tests I'm not sure who thought of it, but whoever did think of that might want (or not) to sit an IQ test under conditions overseen by a competent examiner. I don't doubt the resulting score would immediately sober him up.