DENVER (AP) – The Colorado Supreme Court has ruled people may use medical marijuana while serving probation. The state’s highest court issued the ruling Monday. The justices approved an exception for prosecutors to show evidence that using the drug would run counter to achieving the probation goals in individual cases. Records say the case stemmed from a lower court decision to prevent a woman who pleaded guilty to DUI from using medical marijuana during her 12 months of unsupervised probation. The woman held a valid medical marijuana card. A county court blocked her use because a medical professional did not testify about her need for it. The Supreme Court ruling says the language of the medical marijuana statute creates a presumption the drug can be used while on probation.