Norm Stamper, former Seattle police chief
"The plain and simple truth is that alcohol fuels violent behavior and marijuana does not ... alcohol contributes to literally millions of acts of violence in the United States each year. It is a major contributing factor to crimes like domestic violence, sexual assault, and homicide. Marijuana use, on the other hand, is absent in that regard from both crime reports and the scientific literature. There is simply no causal link to be found."