From the article cited by tjalfi[0]: Nevin collected lead data and crime data for Australia and found a close match. Ditto for Canada. And Great Britain and Fi

From the article cited by tjalfi[0]: Nevin collected lead data and crime data for Australia and found a close match. Ditto for Canada. And Great Britain and Finland and France and Italy and New Zealand and West Germany. Every time, the two curves fit each other astonishingly well. When I spoke to Nevin about this, I asked him if he had ever found a country that didn't fit the theory. "No," he replied. "Not one." The correlation even goes down to the neighborhood level: In fact, Mielke has even studied lead concentrations at the neighborhood level in New Orleans and shared his maps with the local police. "When they overlay them with crime maps," he told me, "they realize they match up." [0]http://www.motherjones.com/environment/2016/02/lead-exposure-gasoline-crime-increase-children-health http://www.motherjones.com/environment/2016/02/lead-exposure...