"Clark, who has previous convictions for indecently assaulting a teenage boy and has been through rehabilitation programmes..."
Probably they used this past track record to say... he watches fairy sex so he's still a perv, still can assault teenage boy, dangerous, let's put him in jail to avoid him doing that. In fact jailing for only watching fairy sex with no previous or different indicments would be fully odd. I consider this at least half odd, going to delete my
http://en.wikipedia.org/wiki/Hayao_Miyazaki animes, for safety.