Over the years, the banking and retail industries have had to invest a lot into the detection of fraudulent checks and counterfeit money as fraudsters have become more and more savvy in the making their counterfeit currency look more real. If you don't have direct experience working with the different detection techniques, be sure to do as much research as possible prior to your interview to speak knowledgeably about the different ways money is being counterfeited and the steps banks are taking to counteract it. If you do have knowledge and experience, be sure to talk about they things you've used to help prevent the passing of counterfeit money up to this point in your career.