well i aint from the uk so cant say that i have but at my school one of my professors was arrested for distribution of child porn in an undercover operation sting conducted by the police. he was a nice teacher that was very popular with the girls (were in college) so it came to us as a shock when we had to have a replacement professor for the rest of the semester. ironically his name was Mr. Butler that alone sounds wrong. the pic on the article of the guy makes him look creepy he does have that pedofile look to him x_x
sadly incidents like urs r more common than ya think schools need to offer firewalls on teachers computers as well otherwise they will abuse their privileges.