Advocates and conservative groups sparred over proposed changes to Utah’s medical cannabis program during a tense, two-hour public hearing.

20-year-old Tyler Huffhines is accused of filling up to 5,000 illegal cartridges a day.

A judge has ruled that a racketeering lawsuit brought by a vineyard against a neighboring marijuana operation can go forward despite attempts to have it dismissed.

A Massachusetts mayor was arrested Friday on charges he conspired to extort hundreds of thousands of dollars from companies seeking to operate cannabis businesses, federal authorities said.

A middle-aged woman dead from severe respiratory illness has authorities eyeing her vape pen.

Mexico is making moves on cannabis, with medical regulations expected in coming months and even the possibility of decriminalization later this year.

More than a dozen new shops could open in Nevada in coming weeks, after a judge gave the go-ahead to companies that underwent background checks and won licenses.

“He was hired to take care of the marijuana house. He is not a drug dealer, he is not a smuggler, he’s just a simple worker trying to make a living by taking care of marijuana.”

Officials are proposing an overhaul of the state’s cannabis rules, with plans for boosting minority ownership, home deliveries of medical marijuana, and letting the smallest growers increase in size.

In Illinois, about 770,000 arrests and convictions, representing about 314,000 people, must be automatically expunged. A San Francisco technology company says it’s up to the task.