People suspected of being involved in rioting face tougher penalties under new laws being introduced this week.
Rioters could face up to a year in jail under new laws
Northern Ireland Secretary Paul Murphy said the new legislation will allow the police to arrest someone suspected of riotous behaviour without first obtaining a warrant.
The maximum sentence for the offence will increase from six months to a year.
New sanctions are also being introduced against those offenders who break the conditions of their bail.
Mr Murphy said the measures were a "firm but proportionate response to behaviour that is both destructive and dangerous".
He said: "Rioting is unacceptable and cannot be tolerated on our streets. It is vital that the police and courts have the powers they need to deal effectively with offenders."
The government said in the past when disturbances had taken place,
it had proven impractical to require police to obtain a warrant.
The new legislation will leave people failing to surrender themselves to custody facing up to three months in jail and a fine of £5,000.
Police will also be allowed to arrest people who breach bail conditions such as someone who breaks an order barring them from a sectarian
Mr Murphy said: "These new measures will deter people on bail from getting
involved in riotous behaviour and other unlawful activities.
"People on bail who fail to report as required are wasting the time and
resources of the courts and police and these new provisions will help them
enforce the law more effectively."