3D Plastic Printed Guns

Police are warning people NOT to make them, because every time they've tested one of the weapons, it's exploded. Authorities in the United States HAVE successfully fired them, but scientists here say that without the right knowledge and the right type of ammunition, anyone trying to fire one could well end up maiming or even killing themselves - and it would be illegal too, of course.

PHIL MACKIE has been given exclusive access to tests carried out by the National Ballistics Intelligence Service....