Charles "Chuck" Sennewald, CSC, CPP, CPO is a nationally known consultant, expert witness, and author of twenty-one books, several of which focus on loss prevention and security. His most recent book From the Files of a Security Expert Witness is a collection of 36 lawsuits, many involving retailers, in which he played a role. Sennewald is the former director of security for Broadway Department Stores where he worked for eighteen years before establishing his own consulting practice in 1979. He is a graduate of the U.S. Army’s Military Police School, the Los Angeles County Sheriff’s Academy, and earned his BS from California State University at Los Angeles. Sennewald can be reached at sennewald (at) cox (dot) net.