structure of law enforcement in the united states
Law enforcement in the United States Law enforcement operates primarily through governmental police agencies. The law-enforcement purposes of these agencies are the investigation of suspected criminal activity, referral of the results of investigations to the courts, and the temporary detention of suspected criminals pending judicial action. Law enforcement agencies, to varying degrees at different levels of government and in different agencies, are also commonly charged with the responsibilities of deterring criminal activity and preventing the successful commission of crimes in progress. Other duties may include the service and enforcement of warrants, writs, and other orders of the courts.
State police (United States) The Texas Rangers are the earliest form of state law enforcement in the United States, first organized by Stephen F. Austin in 1823. The original ranger force consisted of ten men charged with protecting settlers from Indian attacks. Though the rangers of this era are today considered law enforcement officers, they rarely wore badges and were little more than volunteers; the Mexican military was officially in charge of law enforcement in the then-Mexican state of Coahuila y Tejas. The Rangers later served as a paramilitary force on the U.S.-Mexico border and in several armed military conflicts, including the Texas Revolution, the Mexicanâ€“American War, and the American Civil War. They continued to fill basic law enforcement and frontier protection roles until the close of the "wild west" era. In the early 1900s, they transformed into a criminal investigative agency. The history and legacy of the Texas Rangers has spawned numerous depictions in popular culture. The colloquial image of a Texas Ranger "always [getting] their man" has likewise made the Rangers a revered and highly competitive agency within law enforcement, with fewer than 1 in 100 applicants being considered for a single position.