Chicago has been criticized for comparatively light sentencing guidelines for those found illegally in possession of a firearm. Most people convicted of illegal gun possession receive the minimum sentence, one year, a "Chicago Sun-Times" analysis found, and serve less than half of the sentence because of time for good behavior and pre-trial confinement. The minimum sentence for felons found in possession of a firearm is two years. Those charged with simple gun possession had an average of four prior arrests. Those charged with gun possession by a felon had an average of ten prior arrests.