“Misguided” is how police describe a teacher turning up to school last week with a copied handgun to demonstrate the capabilities of 3D printing technology.

Police say the gun was not shown in a class and the teacher returned it home later that day.

Police later searched the teacher’s home, where the firearm was seized as well as the 3D printer used to make it.

The creation of firearms or firearm parts using 3D printers or any other equipment is illegal. All items used to create a firearm are also subject to criminal asset confiscation including printers, machines, phones and computers.