What Colorado's cannabis experiment will teach us
Found on New Scientist on Wednesday, 08 January 2014
Within the year, we could discover whether legal availability erases black market sales, and whether traffic accidents decrease as drinkers switch to marijuana, says Jonathan Caulkins of Carnegie Mellon University in Pittsburgh, Pennsylvania. "It will also be interesting to see if we get a noticeable decline in jail populations, as fewer people are arrested for illegally selling or using marijuana," he says.
People who want marijuana can buy it anyway, no matter if it's legal or not. This change should have some positive effects.