Retributionary

Punishment, moreover, loses all its retributionary character [...]

It might be thought, for example, that a rehabilitation approach simply costs more in both time and money than a retributionary approach. But while retributionary approaches may be a boon to the average taxpayer, they are a bane to ...

Of course, the 'just deserts' retributionary approach does not mean the punishment should be exactly like the crime; it means that there should be equivalencies of seriousness of punishment.