Adams County commissioners have rejected a permit for April’s High Times Cannabis Cup, the vast outdoor marijuana fair that coincides with the 4/20 pot celebration rally in downtown Denver.

The commissioners on Tuesday unanimously denied the Denver Merchandise Mart a permit for the April 16-20 event, taking testimony from several law enforcement officials who warned that there were too many people sampling too many cannabis products openly.

“From a safety perspective, I have serious concerns about this event and this venue,” Adams County Sheriff Michael McIntosh told the commission.

The Cannabis Cup in Colorado is High Times magazine’s largest event and likely one of the biggest ticketed marijuana parties in the world.

When reached at her office in New York Tuesday evening, High Times’ general counsel Cristina Buccola said she hadn’t yet heard about the denial and declined to speculate on the Cup’s future in Colorado. [Read more at The Cannabist at The Denver Post]