remember, DC's definition of a machine gun includes any gun that can or can easily be converted to fire more than 12 rounds semi-automatically. That basically covers any detachable magazine firearm.
But I noticed something earlier today. If that is true, then why did DC register them all these years?
The handguns issued by organizations located in DC that have Special Police Officers have to register the handguns just like everyone else. Do they have revolvers, or semi autos with detachable magazines?