Colorado schools will begin compiling data on students who get busted for using or distributing marijuana. The effort is aimed at gauging the impacts of the drug’s legalization in the state. The new reporting requirement is an addition to a 2012 law directing law enforcement and district attorneys to collect data on how students are punished and whether they’re being referred to police for minor offenses. Schools have been tracking all drug offenses involving students, but marijuana violations have not been separated on their own. Lawmakers want definitive data now that recreational marijuana shops have been in business for almost 18 months. Governor John Hickenlooper signed the bill last week. Washington state, which also has recreational marijuana sales, began tracking student suspensions and expulsions for pot use during the 2013-14 school year.