Dr. Tomas C. Mijares became a member of the Criminal Justice faculty at Texas State University after retiring from the Detroit Police Department in 1991. He spent the majority of his career as a sergeant in patrol supervision and tactical operations. He was instrumental in starting Detroit’s Special Response Team. He earned his Master’s degree from the University of Detroit and his BA and Ph.D. from the University of Michigan. Dr. Mijares serves as a member of the Training Advisory Board of the Texas Tactical Police Officers Association and the Texas Police Association. He has often testified as an expert witness on matters pertaining to the tactical use of force by law enforcement personnel. His research findings in police tactical operations have been presented in several professional conferences and published in a variety of academic journals and book chapters. He is The Management of Police Specialized Tactical Units (three editions), Significant Tactical Police Cases, Training the SWAT Trainer, and Careers for the Criminal Justice Major. He is currently writing A Comprehensive History of American Law Enforcement.