Abstract: This November, California voters will consider a ballot initiative, the Regulate, Control and Tax Cannabis Act of 2010. Scientific research is clear that marijuana is addictive and that its use significantly impairs bodily and mental functions. Even where decriminalized, marijuana trafficking remains a source of violence, crime, and social disintegration. Furthermore, studies have shown that legalized marijuana will provide nowhere near the economic windfall proclaimed by some proponents. The RCTCA addresses neither the practical problems of implementation nor the fact that federal law prohibits marijuana production, distribution, and possession. There is strong evidence to suggest that legalizing marijuana would serve little purpose other than to worsen the state’s drug problems—addiction, violence, disorder, and death. While long on rhetoric, the legalization movement, by contrast, is short on facts.