A former narcotics cop on Tuesday morning delivered a letter signed by 73 current and former police officers, judges, prosecutors and federal agents to Attorney General Eric Holder urging him not to interfere with the wishes of the voters of Colorado and Washington State to legalize and regulate marijuana.

“We seem to be at a turning point in how our society deals with marijuana,” said Neill Franklin, executive director of Law Enforcement Against Prohibition (LEAP), the group that authored the letter. “The war on marijuana has funded the expansion of drug cartels, it has destroyed community-police relations and it has fostered teenage use by creating an unregulated market where anyone has easy access.