Originally Posted by
Spiff
Do you know how ETD works? If there are explosives on the inside of a cast, ETD *will* (not might) alarm if one swabs the exterior and edges of the cast.
What if there is something in the cast other than detectable explosives?
Seriously... If using swabs would resolve the issue, why would they even buy the x-ray equipment?
(Heck, maybe he is hiding a 101 ml bottle of shampoo up there.)