MPs and justice campaigners say some of the sentences given to those involved in the riots in England are too harsh.
On Tuesday two men were jailed for four years for using Facebook to incite riots and another was given 18 months for having a stolen TV in his car.
Liberal Democrat MP Tom Brake said sentences "should be about restorative justice" not retribution.
But Communities Secretary Eric Pickles said tougher sentences would show there were consequences to disorder.
More than 2,770 people have been arrested in connection with last week's riots in a number of English cities.
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