The Pinal County Board of Supervisors has approved a permit for a medical marijuana dispensary near Maricopa despite the county attorney's recommendation that it be denied.

Arizona lawmakers voted Wednesday to pave the way for research at state universities that could eventually allow doctors to recommend marijuana to treat more conditions. 

Sheriff's deputies in Navajo County have executed a search warrant at a marijuana compassion club in Lakeside, but made no arrests.

Maricopa County Attorney Bill Montgomery is asking an appeals court to block a lower court ruling that would force the county to approve zoning for a medical marijuana dispensary.

The first Arizona marijuana medical dispensary opened its door Thursday in Glendale. It legally began distributing marijuana to the dozens of people who waited in line for hours to have their prescriptions filled.

Arizona’s first medical marijuana dispensary is scheduled to open Thursday morning in Glendale.

A university in Northern California has formed an academic institute devoted to marijuana.

The Arizona Department of Health Services has issued its first annual report on the state’s medical marijuana program. The department’s director says he’s struck by the small number of doctors who have written a large percentage of the program’s certifications. 

Attorney General and Acting Governor Tom Horne explains why he's acting to block full implementation of the state's medical marijuana program.

Judge John Leonardo has been the U.S. Attorney for Arizona since July.