FWIW, 4 registered sex offenders out of 6,000 people is not at all unusual.
There are over 50,000 registered sex offenders in the U.K. as a whole. So if you do the calculations, 4 is about right for a population that size.
There are over 50,000 registered sex offenders in the U.K. as a whole. So if you do the calculations, 4 is about right for a population that size.