BOULDER, Colo.—University of Colorado officials hoping to curtail an annual marijuana smoking gathering say those entering the Boulder campus during this year’s 4/20 event must be cleared to do so or will need a university ID.
Police have mostly monitored the thousands of attendees at the April 20 event. But this year, checkpoints will be set up at all of the campus’ major entrances, and more officers will be on patrol. Those not affiliated with the university and those not attending other events on campus could be ticketed for trespassing.
In the past, hundreds have gathered on campus at 4:20 p.m. on April 20 to smoke marijuana. The event gets its name from the California statute number that bans marijuana possession.



