John Velke is a more than 40-year veteran of retail loss prevention currently serving as the SVP of risk management for Total Wine & More. He is the author of two nonfiction books, The True Story of the Baldwin-Felts Detective Agency and the recently released textbook Prove ‘Em Innocent: The Art & Science of Workplace Investigations. He can be reached at jvelke (at) proveeminnocent (dot) com.