1) The document evaluates the MNPD Drug Market Initiative which targeted an open air drug market on the 800 block of N. 2nd St in a transitional neighborhood. 2) The intervention included undercover drug buys, arrests, and call-in meetings for low-level dealers to encourage treatment over prosecution. 3) Statistical time series analysis found immediate and statistically significant declines in drug offenses, property and violent crime, and calls for service in the target area and adjacent neighborhoods, but not other parts of the city.

1. Evaluating the MNPD Drug Market Initiative Nicholas Corsaro Southern Illinois University & Edmund F. McGarrell Michigan State University

4. Problem - Calls for Service These two streets provide a good basis for comparison and some appreciation of the scope of the problem. Stockell St. is a parallel street one block east of N. 2 nd . Year 800 Block N. 2 nd St. 800 Block Stockell St. 2006 872 82 2007 1091 72 2008 thru 6/23 255 52

16. Drug Offense Trends Narcotics & Drug Equipment Offenses aggregated = Drug Offenses Target & Adjoining neighborhoods combined 21.4 Drug Offenses Pre-Intervention, 11.2 Drug Offenses Post-Intervention

17. UCR Offense Trends Total Violent & Property Crimes aggregated = UCR Offenses Target & Adjoining neighborhoods combined 13.8 UCR Offenses Pre-Intervention, 10.2 UCR Offenses Post-Intervention

18. Calls For Service Trends Total CFS aggregated where someone requested police assistance = CFS Target & Adjoining neighborhoods combined 92.0 CFS Pre-Intervention, 74.2 CFS Post-Intervention

19. ARIMA Time Series Results MS = Marginally Statistically Significant p < .15 (Impact Assessment Standard) SS = Statistically Significant p < .05 (Social Science Standard) NS = Not Statistically Significant (Change May Be Product of Chance) Outcome McFerrin Park Adjacent Area Remainder Nashville Violent Crime MS Decline -24.0% NS Decline -23.9% NS Decline -7.4% Property Crime SS Decline -28.4% MS Decline -25.9% NS Decline -7.0% Drug Equipment SS Decline -36.8% SS Decline -22.2% MS Decline -9.3% Narcotics Offenses SS Decline -55.5% SS Decline -50.3% NS Increase 5.5% CFS MS Decline -18.1% MS Decline -1.0% NS Decline -5.9%