I have many beefs with the prison system.
My ex husband's sister was in and out of county at various times for various reasons -- none of them a violent crime, mind you -- and all going to prison did was make her (and her kids) more dependent upon welfare. It didn't "reform" her, and it didn't "deter" her from her behavior. She just tried a little more to not get caught after each "visit" and, even then, not very much harder as she viewed her 30 days in county as more of a vacation than anything else --3 hots, a cot, and cable tv, all on the gov't's dime. If jail was anything to her other than that "vacation" it was a really great way to make new connections with other criminals, and give her just that much more of a contact list when she got out. A trade conference for those involved in the illegal drug industry, if you will. She always came out of a stay at county with at least 3 more friends who could "hook her up" with whatever it was she was looking for (usually meth).
Throughout all her time bouncing in and out of jail, not once did anyone (judge, social worker, etc.) look at WHY she was committing crimes, and try to address that. They just shoved her in a cell and tried to ignore the problem. I think that prison is a really great way for society to ignore it's problems. And because we're spending so much time and money ignoring those problems, we're not addressing them, so more and more people end up in jail every year. If we were to spend that money on research about why people commit crimes, and then spend money on the alleviation or prevention of the conditions that lead someone to commit crimes... Lets just say I think that would be a much better solution than just chucking someone into a jail cell the moment they put down a foot even the slightest bit wrong.
I actually feel that jails exacerbate the situation, in that jails seem to breed bigger and badder criminals. The guy who gets tossed in for possession, ends up walking out with not just a supply line, but a steady job dealing for the gang he had to join to keep from being beat up (or worse).
I also think that the idea of jail being a deterrent is laughable. It's obviously not much of a deterrent -- our jails are over-full to the point of bursting. I think the purpose of jails should be the protection of the public. For example, when someone is dangerous enough that allowing them to remain a part of society is too high a risk to the people who would be around that person. Serial killers, for instance. In those cases, where even the undertaking of rehabilitation poses too much of a risk to the general public, that's when we should be locking someone up.
Anyway... Yes, I think calling it the "department of corrections" is a huge joke.