They will never end up in jail, by the time 1st offence/ mitigating circumstances/ fannying around with what they're charged with gets taken into account, They will end up with a banning order, community service, suspended sentence, whatever.
Secondly there is no way the police accidently let both sets of fans out at the same time. I agree with Stu's theory on that one.
Thirdly, some skate threw a punch at me in the north car park before the game, Guess what? i got over it, i don't wish him five years in jail or some of the other suggestions on here, some of you are pathetic.