(Another Study Shows again) San Francisco's Marijuana Dispensaries Still Don't Cause Crimes
Whenever a new medical marijuana dispensary applies for a San Francisco permit, a troop of naysayers is ready with a predictable script: dispensaries cause crime, harm children, and destroy neighborhoods.
(Head of the DEA) Haag presented no data along with her claims, and a recent study conducted by UCLA researchers won't help her either. Based on crime trends in Sacramento in 2009, the study found "no observed ... associations between the density of medical marijuana dispensaries and either violent or property crime rates," and further found that dispensary security measures like door guards and security camera may be crime deterrents.
Researchers Nancy Kepple and Bridget Freisthler looked at other crime-causing variables including employment, young men, and vacant housing. They crunched the numbers and found no discernible link.
http://www.huffingtonpost.com/2012/06/11/san-franciscos-marijuana-dispensaries_n_1588333.html