Going Through Rough Times

I think that my assistant is stealing from me. There has been money missing for the petty cash for the last two months. I know that she is going through a rough time right now. Her husband just lost his job and her medical bills have been piling up. I do not want to fire her unless I know for sure that she is the one who is stealing. I bought a DVR Desk Lamp Hidden Spy Camera last week. The lamp is in the perfect position to catch someone getting into the petty cash box. I hope it is not her.