There already is some intelligence fed back to the police somewhere in the 3d printed guns supply chain. You see it a lot on crime investigation shows. Pretty

There already is some intelligence fed back to the police somewhere in the 3d printed guns supply chain. You see it a lot on crime investigation shows. Pretty sure I've seen it on 24 hours in police custody and at least one other show or documentary. edit: police acting on a source, a lead or some other un-named entity.