BladeTech believes a fraud has been committed by its Vice President of Marketing, Bob Mast. The fraud involves the overpricing of products purchased and approved by Mr. Mast. One vendor, Ivan Trotski, may be involved. In return for approving the purchase of overpriced products from Mr. Trotski, Mast received kickbacks. The e-mail records at BladeTech may contain evidence of the collusion between the two men. Describe the steps you would take to uncover evidence of the crime