Q: One of our employees was acting funny, so I brought her into my office to ask her about drug use. She asked us to drug test her. Can we? 

A: No. And, in fact, this is dangerous enough that you might want to run screaming from the room. The Iowa drug testing statute is complicated, and the court is unforgiving of mistakes - severe penalties are imposed on employers who do not follow the rules to the letter. If you do not have a properly constructed policy and the process to back it up, you cannot test, even if the employee asks.