More prison time for less crime, our swelling prisons are costing us dearly
- Written by Stephen King, Adjunct professor, Monash University
Across Australia, the rate of imprisonment has climbed by about 25% in the past decade, over a time in which the rate of offending has dived 18%.
How can it be that we have less crime but more people in prison?
It’s the conundrum at the heart of a Productivity Commission research paper released this morning entitled Australia’s Prison Dilemma.
This graph presented in the report uses homicides as an indicator of trends in the incidence of violent crime because almost all homicides are reported to police.
Homicides and imprisonment per 100,000 Australians
The apparent fall in imprisonment during the pandemic may not last. It appears to be due to COVID-related decisions to release more unsentenced prisoners on bail, and slowdowns in court processing during lockdowns.
Competing explanations
One obvious – but incorrect – explanation for rising imprisonment at a time of falling crime might be that rising prison numbers are deterring crime. But the best evidence from Australia and overseas shows little if any such connection.
Another might be that “tough on bail” laws are leading to more people being held in prison awaiting trial. Even if some are later found not guilty or are not sentenced to prison, such a change could push up prison numbers while total crime is falling.
Or it might be that “tough on crime” policies are making us send people to prison for crimes that previously would have led to a fine or suspended sentence.
Or we might have increased sentences – imposing more time for the same crime.
Our research finds the correct answer is “all of the above”, with the key driver across Australia being changes that are “tough on crime”.
Read more: Australia's prison rates are up but crime is down. What's going on?
The biggest drivers of increased prisoner numbers across Australia are the chance that a person who is found guilty is imprisoned and the length of the term.
Both have been increased by new policies that mandate prison sentences for certain crimes, eliminate suspended sentences, and make it harder to get parole.
Toughness is understandable
The changes might be appropriate. Perpetrators of violent crime can destroy lives, and they make up almost 60% of the prison population.
However, a lot of prisoners have committed more minor offences with little risk of harm to others. Over one third of prisoners have sentences of less than six months and 60 per cent have been in prison before.
Many of the repeat prisoners are stuck on a treadmill of prison, minor crime, prison with untreated drug or alcohol problems, untreated mental illness, and few if any employment prospects.
Locking up low level offenders just to have them churn through prison again and again is costly.