Allan Pinkerton affiliated with the notorious Banditti of the Prairie. After observing their movements for some time he informed the local sheriff, who arrested them. This later led to Pinkerton being appointed, in 1849, as the first police detective in Chicago, Cook County, Illinois. In 1850, he partnered with Chicago attorney Edward Rucker in forming the North-Western Police Agency, which later became Pinkerton & Co, and finally Pinkerton National Detective Agency, still in existence today as Pinkerton Consulting and Investigations, a subsidiary of Securitas AB. Pinkerton's business insignia was a wide open eye with the caption "We never sleep." As the US
Baldwin–Felts Detective Agency Baldwin–Felts Detective Agency The Baldwin–Felts Detective Agency was a private detective agency in the United States from the early 1890's to 1937. Today, it is most remembered for its violent confrontations with labor union members as part of the Coal Wars in such places as the Pocahontas Coalfield region of West Virginia, the Paint Creek-Cabin Creek strike of 1912 in West Virginia, the Ludlow Massacre in 1914 and the Battle of Matewan in 1920. Members of the agency were also central actors in the events that led to the Battle of Blair Mountain in 1921. The agency was founded in