If firearms can be made in prison, under the very nose of the state, it leaves no doubt as to how easy it is. Why some people think that outlawing guns will keep them from being made in the outside world is a real mystery to me.
Double barreled Shotgun:
"made from iron bedposts; charge made of pieces of lead from curtain tape and match-heads, to be ignited by AA batteries and a broken light bulb. On May 21, 1984 two inmates of a prison in Celle, Germany, took a jailer as a hostage, showed off their fire power by letting go at a pane of bullet-proof glass (bottom right), and escaped by car."