This is not right. The main issue is he has only served half his sentance. Swindon Town too are out of order.
I hope he is booed off the pitch by home and away fans.
I don't know how it works in England, but in Sweden it is very rare that people serve their full sentence if they have behaved well while being locked up. Usually they let them out after 2/3 of their full sentence. Maybe it's the same in England?