Councils and housing association should be doing far more to evict tenants engaged in crime or anti social behaviour including rioting. Weakness in this regard is not entirely their fault but also due to court delays.
At least this provision of the Anti-social, Behaviour, Crime and Policing Bill should help a bit:
"Part 5 – Recovery of Possession of dwelling-houses: Anti-Social Behaviour grounds
Anti-social behaviour can have a negative impact on neighbourhoods and communities. Social landlords have a key role in tackling anti-social behaviour. Provisions in the Bill introduce a new ground for possession to speed up the process in the most serious cases of anti-social behaviour bringing faster relief to victims and communities."
Also in the Queen's Speech: