Last year, for instance, researchers looked at more than 67,000 misdemeanor cases in Suffolk County, Mass., which includes Boston, and found that people arrested but not charged for offenses like drug possession and shoplifting were less than half as likely as those who were prosecuted to be arrested again two years later for a new crime.
looking at empirical data, rather than trusting our more punitive intuitions
incarceration does not serve the rationale of deterrence the way it claims to.