TexasCHLforum.com

Ok maybe I'm being overly simplistic about this but the use of this "detector" sounds like a search without provocation which would fall under the 4th ammendment.

"The right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated, and no Warrants shall issue, but upon probable cause, supported by Oath or affirmation, and particularly describing the place to be searched, and the persons or things to be seized."

Another example of how the government is removing it's citizens of their constitutional rights.