Harris and Sadler document the further and final change that followed when, in 1935, the Texas Rangers were moved from the governor's control to the newly created Department of Public Safety. This proved a watershed in the Rangers' history, marking their transformation into a modern law enforcement agency, the elite investigative force that they remain to this day.

Charles H. Harris III, professor emeritus of history at New Mexico State University, Las Cruces. He has coauthored half a dozen books, including The Texas Rangers and the Mexican Revolution: The Bloodiest Decade, 1910-1920, The Secret War in El Paso: Mexican Revolutionary Intrigue, 1906-1920, and The Plan de San Diego: Tejano Rebellion, Mexican Intrigue.