I just want you to know that when the ion scanner was originally introduced, for a period of time staff were subjected to it, but because of the excessive false positives, which would keep staff from being able to go in and work and all kinds of things, it was the union that petitioned CSC to stop using the scanner on staff.
I don't know that it's up to us to tell CSC how to keep their staff and maintenance workers from bringing drugs in. There must be examples and technologies in other jurisdictions somewhere in the world that they can look for. They just need to look for it.