Interesting that you should bring up about girls lying about their age angelstar. There was a case recently around here where an 18 yr old lad was charged with having sex with a 15 yr old girl.
The fact the girl was in a club for over 18's when he picked her up, and that she claimed to be 18 and that she looked 18 when dolled up with makeup and horny clothing made no difference to the case.
Also due to her underage status he was not allowed to even know, let alone use in his defence, the fact that she was already a single mother and had a 1 yr old baby placed in council care. This all came out after the case, but he can't use it in an appeal because it's still privledged information.
The law said he was guilty and he was sentenced to 2 yrs prison suspended for 2 yrs, so he didn't have to do any time, but he's now on the register of child sex offenders for life.
Fair???????? Not in that case I don't think it was, but the law is so inflexible.