Weedmaps to stop advertising unlicensed pot businesses

The major online pot shop directory and cannabis marketplace Weedmaps announced Wednesday that it will no longer allow black-market businesses to advertise on its site, a decision that could boost California's efforts to rein in its vast illegal market.

Mesa lab tests thousands of medical pot samples a month

The medical marijuana industry continues to grow in Arizona. Currently, marijuana sold in dispensaries is not required to undergo any safety checks before it's sold to the public. That, however, will soon change. FOX 10's Ty Brennan reports.

Illinois becomes 11th state to allow recreational marijuana

Illinois' new governor delivered on a top campaign promise Tuesday by signing legislation making the state the 11th to approve marijuana for recreational use in a program offering legal remedies and economic benefits to minorities whose lives critics say were damaged by a wayward war on drugs.

Study: Opioid use dropped in medical cannabis states

States with medical cannabis programs saw a dramatic reduction in opioid abuse, according to a study done by University of Georgia researchers. The study was published in the Journal of the American Medical Association.