Ex-San Diego assistant chief of police Norm Stamper, who lost out to Jerry Sanders for the job of top chief way back in 1993 before leaving for Seattle to become chief of police there, is now blogging for the Huffington Post. In typical Stamper form, he's in a mellow groove:

"Alcohol contributes to acts of violence; marijuana reduces aggression. In approximately three million cases of reported violent crimes last year, the offender had been drinking. This is particularly true in cases of domestic violence, sexual assault, and date rape. Marijuana use, in and of itself, is absent from both crime reports and the scientific literature. There is simply no link to be made.

"Over the past four years I've asked police officers throughout the U.S. (and in Canada) two questions. When's the last time you had to fight someone under the influence of marijuana? (I'm talking marijuana only, not pot plus a six-pack or a fifth of tequila.) My colleagues pause, they reflect. Their eyes widen as they realize that in their five or fifteen or thirty years on the job they have never had to fight a marijuana user. I then ask: When's the last time you had to fight a drunk? They look at their watches."