US Rep. Sam Farr (D-CA) and more than 20 congressional cosponsors [9] Tuesday introduced a bill that would allow defendants in federal medical marijuana prosecutions to use medical evidence in their defense -- a right they do not have under current federal law. The Truth in Trials Act [10], H.R. 3939, would create a level playing field for such defendants.

More than a hundred medical marijuana providers have been prosecuted for violating federal marijuana laws, and more cases are coming down the pike. More than two dozen cases are currently pending. While the Justice Department last week issued guidelines to federal prosecutors discouraging them from prosecuting providers who comply with state medical marijuana laws, that guidance does not require that courts or prosecutors allow testimony about medical marijuana, nor does it suggest that prosecutors drop those cases.
"The Truth in Trials Act will restore the balance of justice and bring fundamental fairness to federal medical marijuana trials," said Caren Woodson, government affairs director with Americans for Safe Access [11] (ASA), the nation's largest medical marijuana advocacy group. "This legislation complements the recent Justice Department guidelines for federal prosecutors and is now more necessary than ever."
While Farr has introduced the Truth in Trials bill in earlier sessions, supporters hope this time the bill will gain some traction. It has already been endorsed by more than three dozen advocacy, health, and legal groups, including ASA, the ACLU, the National Association of People With AIDS, the National Minority AIDS Council, and the AIDS Action Council.