Arizona officials used a bingo-style machine with sets of numbered air-blown balls Tuesday as they picked winners from among more than 400 applicants for certificates to run 97 medical marijuana dispensaries around the state.

The Arizona Department of Health Services will hold a lottery this morning to determine which individuals or businesses will get dispensary licenses for medical marijuana. 

All but two of Arizona's county attorneys have signed a letter to Governor Jan Brewer asking her to stop the licensing of medical marijuana patients and dispensaries. They say it's too dangerous for the state to run a program that violates federal law. 

Arizona Department of Health Services director Will Humble explains how conditions become eligible to be treated by medical marijuana and gives a rough timeline for the opening of dispensaries.

Will Humble, director of the Arizona Department of Health Services, talks about the process of adding conditions to the list of ailments that can be treated by medical marijuana.

The State of Arizona has announced it will start accepting applications for medical marijuana dispensaries May 14.

More than 22,000 Arizonans have applied for and received permission from the Department of Health Services to use medical marijuana. 

The State of Arizona and the Department of Health Services are headed back to court over the state’s voter-approved medical marijuana law. A pro-medical marijuana group is contesting several requirements, including the rule that marijuana dispensaries must have a medical director.

Last year, we told you the story of a woman who uses medical marijuana as she recovers from cancer. (She wishes to remain anonymous.) At the time she first spoke with us, Arizona’s voter-approved medical marijuana law was still very much up in the air. That was over eight months ago. Her life has changed a great deal since then.

Arizona’s contentious medical marijuana law is moving closer to full implementation. A ruling in Maricopa County Superior Court this week struck down several rules about who can operate marijuana dispensaries.