Questions asked in pre-employment polygraph screening are more general than the one you suggested. Instead, you might be asked a relevant question such as "Did you ever steal anything worth more than $200?" You might also be asked a question such as, "Did you ever take anything that did not belong to you?" But this second question is a probable-lie "control" question -- one that is intended to cause a reaction even in people a department would want to hire.

You'll find polygraph procedure explained in detail (including the kinds of questions you can expect to be asked) in Chapter 3 of The Lie Behind the Lie Detector, which you can download here:

http://antipolygraph.org/lie-behind-the-lie-detector.pdf