I saw this on one of the news programs. They also said the companies can do it, and not violate privacy because the items the swipe is tested on is owned by the company, therefore the have the right to do what want. It's the same as emails or anything that is in the employer's building concerning office equipment, and the like. They own it, they can protect their company this way.

The said it was so sensitive it could pick opiates and other substances from phones, computer keys, mouse pads, etc, even if it's been a while. Unless the items have been washed, or cleaned. Things like phones and keyboards are not "cleaned" on a daily basis.

I'm glad I work from home, and anyway, my employer knows of my pain situation and knows I take medication for it.