It would be interesting to compare police data with a sewage study like this: http://www.addictionjournal.org/press-releases/wastewater-analysis--a-new-source-o

It would be interesting to compare police data with a sewage study like this: http://www.addictionjournal.org/press-releases/wastewater-analysis--a-new-source-of-monitoring-illicit-drug-use-in-europe http://www.addictionjournal.org/press-releases/wastewater-an... My guess would be that San Francisco's marijuana and cocaine consumption is at a per capita all-time high, even as police incidents decline.