In Colorado, the number of patients on the medical marijuana registry went up, not down, since 2012.
Some prosecutors have been charging individual hash oil creators with felonies while others have not pursued criminal charges at all.
Millions of dollars have poured in as tourists from around the world have come to get high in Denver.
The complaint alleges that Colorado's Amendment 64 runs afoul of federal law.
CPR's regular interview with Gov. John Hickenlooper covered TABOR refunds, how to make housing more affordable and "disappointing" news about the state's health exchange.
The actual number of marijuana arrests last year at DPS is double the number provided earlier, while the percentage increase over the previous year was scaled back to 6 percent.