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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Police have named a man who died after a knife attack in the St Ann's area of Nottingham as 21-year-old Reuben Morris-Laing.
A peace vigil is to be held in Birmingham to promote unity, after the city's most prominent mosque condemned the Westminster terror attack.
Five car-jacking suspects – including a 13-year-old boy – have been arrested after police traced a stolen car to a Birmingham back-street.