How many pot patients Calif. has is anyone's guess

The Associated Press
Saturday, March 24, 2012

The reality is that no one knows how many people are legally using marijuana in California because the state — with hundreds of pot stores and clinics that issue medical marijuana recommendations — does not require residents to register as patients. Of the 16 states that allow the medicinal use of cannabis, it is one of only three without such a requirement. A state lawmaker has recently introduced legislation that would give authorities a much clearer count of the drug's bona fide consumer base.