Meanwhile, an events firm which offers people the chance to experience what it's like to take part in a riot has been accused of encouraging street violence.
People can also take on the role of police officers, in full body armour. One MP has described it as "completely wrong" and "unacceptable", especially in light of last year's disorder in Birmingham. Lee Comley reports.
The A38 in Droitwich Spa in Worcestershire is closed in both directions, due to a serious accident at Copcut Lane near the A38. It's affecting traffic between Droitwich Spa and Worcester. Expect delays.