Those summoned must report. And they can be tied up at a trial for weeks, posing financial hardships for jurors and employers.
The chief judge at U.S. District Court in Chicago, James Holderman, is hearing the case. He ruled recently that Henders' claims may have merit and can proceed.
A supervisor at the hhgregg store declined any comment Tuesday.
If they're found to have violated the law, employers can be on the hook for back pay.