But this isn't just a couple of bleeding heart academics advocating on behalf of a stigmatized group -- there's a solid research foundation supporting the argument. Several smart and creative studies have now followed people arrested or convicted of crimes to watch how long it takes before a criminal's risk of a new offense drops to the point that it is indistinguishable from those with no record of past crimes.
Several teams of social scientists have designed really elegant studies to answer this important question. Most use some variant of event history or survival analysis -- a semi-fancy but straightforward set of statistical tools. Based on their own research, Blumstein and Nakamura now conservatively estimate the “redemption time” at 10 to 13 years. Megan Kurlychek, Bobby Brame, and Shawn Bushway came up with about a 6-year window using somewhat different data and methodology in 2006.
While the specific "time-to-no-crime" varies across studies, the best evidence is now calling into question standard "lifetime" bans on employment, voting, and other rights and privileges. This doesn't mean that the laws will be changed or even that they should be changed. But it does show how good social science can challenge old assumptions and inject much-needed evidence into public debates. And, for those of us who like to put our semi-fancy statistics to good purpose, the op-ed and the research beneath it offer a fine example of public scholarship.
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