Me last year: What’s “Um” in Prison Slang?

Then later in the year: If the French Can Figure It Out…

Now all of a sudden:

The Times - Prison works. So why won’t we admit it?
If the crime rate really is falling, there’s a simple explanation. We are locking up more criminals, by David Green

By increasing the prison population the Government has been doing the right thing. However, it feels rather shame-faced about that increase and rarely makes the connection between lower crime and more prisoners. But there are two reasons why increasing the prison population will reduce crime - incapacitation and deterrence.

I’m thinking at the moment the most they can hope for is incapacitation.