As a policy its an expensive failure. but as long as we have talkback radio driven policy and cheery old gents like Garth McVicar rabbiting on about revenge instead of justice, us poor suffering taxpayers will have to pay and pay.
he total cost of prisons has doubled since 2005, and tripled since 1996. Since 1972, criminal-justice costs have grown twice as fast as any other category of Government spending and three times faster than GDP. It can be inferred from the data that this pattern of rising costs is due to the legislative changes that have resulted in more people in prison who are on longer sentences and are serving a longer proportion of their sentences. Therefore, falls in the volume of crime (which would potentially save costs of imprisonment) have been cancelled out by the policy settings that remand more people in custody, and then, if convicted, keep them in prison for longer
Personally I object to paying taxes to run prisons instead of schools