How the hell did that happen

So I heard on the news 2day that some murder who was due to be sentenced etc at Reading Crown Court, somehow escaped and is now at large. How annoying cuz I don't work too far from the court stupid people how do you let someone like that escape. Aparently a police officer was 'hurt' in the process GOOD, FOOL it's ur fault for letting him get away. How dumb is that, UK police are soooo crap! It's like they have no sense