The three-day International Cannabis Convention was recently called off by city officials who raised concerns about security and the legality of the event.

“The event was not the type of activity I wanted to be associated with Pontiac, and there were too many questions about the state medical marijuana laws and what could or could not take place inside the Silverdome,” Mayor Leon Jukowski told the Detroit News.

The website for the convention, promoted by Medical Marijuana Inc., billed the event at the former football stadium as a trade show to “educate, build awareness and provide ethical, reliable information to the public, patients, caregivers and businesses associated with the cannabis and alternative health and holistic industry.”

The site also announced the event would feature entertainers, exhibitors, vendors, guest speakers and “vaporization tents and edibles for qualifying patients with current cards.”

Jukowski questioned the promoter’s premise that the event was only for legal users of marijuana, adding that “it appeared clear this was something else.”

Medical Marijuana Inc. is reportedly in talks to move the event to the Cobo Center in Detroit next year.

Click here to read the complete Detroit News article.