If they go for a ban, there will be a lot f this going on: Sparks fly at assault-weapons ban hearing on Capitol Hill, ex-cop vows she would 'not comply' Dianna Muller, who served in the Tulsa Police Department for 22 years and is the founder of gun advocacy group The DC Project, was among the witnesses at the House Judiciary Committee hearing. "Please don't legislate the 150 million people just like me into being criminals. It has happened. You've already done it," Muller said, referring to the Trump administration's ban on bump stocks, the devices that use a semi-automatic weapon's recoil to make it rapidly fire like an automatic. "I was a bump stock owner, and I had to make a decision: do I become a felon, or do I comply?" Should the government pass an assault-weapons ban, Muller declared, "I will not comply." Sparks fly at assault-weapons ban hearing on Capitol Hill, ex-cop vows she would 'not comply'