Liz Martinez is a former New York State investigator. She is working on a Ph.D. in linguistics, with a research focus on coerced confessions and wrongful convictions. She is a consultant and expert witness in the areas of forensic linguistics and retail security, especially organized retail crime. She is also the author of the book The Retail Manager’s Guide to Crime and Loss Prevention (Looseleaf Law, 2004), a mystery novel, several short stories and hundreds of articles about police and security. She is currently at work on a biography of Iwo Jima flag-raiser Ira Hayes, a Pima Indian. She can be reached via www.LinkedIn.com/in/LizCMartinez.