If the cops want to attach a GPS device to your car and track your movements, they need to get a warrant, the Supreme Court ruled unanimously Monday.

Another person has died by eating drugs to try to avoid arrest. This time it happened in Las Vegas.

For the fourth year in a row, a hemp production bill has been filed in Kentucky.

Guatemala's new president vowed an "iron fist" against the drug cartels and called out the army to fight them, but now he wants to talk decriminalization.

Arizona Gov. Jan Brewer's battle to block dispensaries from opening in the state is just about at the end of the road. After losing in state court, she announced she wouldn't appeal.

The California Supreme Court has agreed to hear four medical marijuana dispensary cases. It's eventual decisions could bring some clarity to the murky realm of what is and is not legal in the state.

Although it was a relatively quiet week in Mexico's drug wars, it's probably now safe to say that 50,000 people have been killed in prohibition-related violence there since President Calderon sent in the army in December 2006.

Here's our weekly look at medical marijuana news from around the country. There's plenty going on--and late breaking news from California Wednesday afternoon.