I don't know how they police stuff like that or even if his ban was still effective but he was apparently banned four years ago. If his ban had a lifespan I would personally hope it was still in effect and if it was then that hasn't been policed well at all. Much like the fact he made it onto the pitch, attacked a goalkeeper, went back into the stands where he was still shown on camera in his seat and then somehow managed to leave the stadium without being arrested. Whats that about?
And I'm getting more excited/nervous now...