There is no question with which Anarchists are more commonly met than, "What is to be done with criminals in a society where there is no government? You say that the present system of coercion is a cruel wrong to human nature; you say that the masses, when they rise to overthrow the economic tyranny of the property owners, will destroy all this elaborate machinery of law-court and prison, and indeed it is a fact that the opening of prison doors has been a prominent feature of popular revolts; but surely you cannot wish and intend to let the criminal class loose upon society?" And the most selfish and brutal of respectable objectors will go on discoursing about the "criminal class" in the tone of the Pharisee of all ages when be has occasion... (From : AnarchyArchives.)