Owing to the great variety of crimes that can be punishable by prison, some people argue that not all criminals are the same and it would therefore be more appropriate to give certain criminals community service instead. I agree that in some cases, prison is not the best solution and community service would probably have more benefits.
One justification given for prisons is to keep society safe by removing criminals from the outside world. So the first thing to consider is if someone who has broken the law is a danger to other people. In the case of violent crime, there is an argument to keep the perpetrator away from society. However, burglary or possession of drugs, for example, does not involve violence against other people so the criminal does not present a direct danger to anyone in the community. Keeping these types of criminals in prison is expensive for the taxpayer and does not appear to be an effective punishment as they often commit the same crime again when they come out of prison.
Personally, I also believe that punishment should reform criminals so that they do not reoffend. A further reason not to put these people in prison is that they may mix with more dangerous and violent criminals, potentially commiting a worse crime when they are released. By keeping them in the community, helping others, they not only learn new skills, but they could also develop more empathy and care towards others. If this occurs, society can only benefit.
Critics of this more rehabilitative approach to crime believe that justice should be harsh in order to deter people from committing similar crimes and community service could be less likely to have that effect. However, there is very little evidence to suggest that long prison sentences deter criminals.
In conclusion, putting criminals who are not a danger to society in prison is expensive and, in my opinion, ineffective, both as a deterrent and as a form of rehabilitation. Community service for non-violent crimes benefits both society and the offender. That said, it would be useful to have more data to work out whether community service or prison is more likely to stop someone from reoffending. I strongly believe that decisions on how best to deal with criminals should be based on evidence of what actually works.