Criminal Justice and Immigration Act 2008. This is not the sort of material we are talking about.
'Hardcore' pornography (depicting explicit sexual activity) and any lesser degree of image, is not illegal to possess or distribute in the UK. That's what we are talking about here. It is certainly against the rules of any school not run by crazy people, but it is not illegal.
Clearly if I were to find material that fell into the illegal category, I would immediately consult with SMT and insist that the police were contacted, and would not forward it to anyone, nor make any copies. The only thing I would do is immediately suspend the user's account so as to ensure the material could no longer be accessed by anyone except an administrator.
Indeed, I had got the impression from something said earlier that we were talking illegal material here, not just inappropriate.
Pornography is not illegal in itself, but it is illegal for someone under the age of 18 to view these.
Close but not quite there.
True, pornography is not illegal (and the phrase is rarely used as such in UK law) and possesion of it is not illegal either (even for under 18s) but it is illegal to distribute it to under 18s as well as there being carefully prescribed rules on distribution too.
The introduction of recent legislation dealing with extreme porn is another matter though.
Other than the recent legislation already mentioned the key legal act is the obscene publications act. There is plenty of case law about this and those found guilty will face more severe punishments if found to have distributed to under 16s. Since the age of consent for sex is 16 it is not common for the CPS to take the same position with 16 and 17 year olds but it does depen on whether they are vulnerable (including those with statements or other recognition of requiring additional needs)
Had this the other day.
I've implemented a two week ban, letter is going home and I've confiscated the MP3 player (as well as deleted images off their network area and MP3).