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.
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Often dry with bright or sunny spells. Occasional light showers.
A dry start to Tuesday with some bright spells, though scattered showers developing.
Stoke City have announced the signing of Wales international midfielder Joe Allen from Liverpool for a fee which could rise to £13 million.