Ravenwood points to this Deseret News article, which begins with:
In Salt Lake County, the jail continues to suffer from chronic overcrowding despite the fact the crime rate has declined.
Certainly, it is fair to argue that crime rates are declining in part because cities and the county are willing to lock people away for long periods of time. But the lock-'em-up theory of public safety has its limits, both physical and logical.
On the physical side, taxpayers aren't ready to keep building and operating jails, nor are they likely to be any time soon. Right now, a tenth of all county revenues go toward the criminal justice system. That is about enough.
On the logical side, it makes little sense to lock up someone who is criminally delinquent on paying a fine when the cost of a first day in jail is often well over $100. Nor does it make sense to put someone in a highly secure environment who does not pose a risk to the safety of others. Instead that person could be put to work doing menial tasks and housed in a minimum-security environment that is far less expensive than a jail.