There may be some criminals whose sentences are too long. but there are many cases where the lengths of the sentences are manifestly too short. The recent examples of violent men committing rapes and murders, while on parole is unacceptable in a supposedly civilized society.
It appears likely that by conforming to prison rules and behaving well, these men have out-smarted the system, and been released when they should not have.
My remedy for this state of affairs is to make the 'protection of the public' the prime consideration in sentencing criminals under our criminal justice systems, if necessary by an amendment to the Constitution.

third try,
I totally agree with you. We need to get rid of Magistrates & have trial by Jury only with a victim or a relative of a victim being part of it.
This bail business is yet another shonky show. We have a an 100% proven assault offender who is out on bail. Why is that craphead not in jail awaiting his trial ? Perhaps if bail was a defence lawyer sitting in jail as a guarantor instead of paying money more offenders would stay in jail upon arrest, we would get some quicker results. Too much benefit of the doubt is afforded to the offender & none to the victim.
Again, a national referendum is needed on sentencing & the length of sentencing. Also compensation must be introduce asap.