On: “We Just Can’t Have You Here”

[ollysb]

Wouldn't a metal detector do the job?

[lostlogin → ollysb]

Possibly, I have never used one. A razor blade is very small, and the consequences of a miss could be high so that may be a factor.

[hueving → lostlogin]

Metal detector sensitivities can be turned up to where they detect even pins in a bone. The bigger risk with the metal detector approach is sharpened plastics or glass.