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
Sinners Never Sleep heavily influenced by Jimmy Eat World. "The Dilemma" takes its name from "The Dilemma" (2011), featuring Vince Vaughn. It's about a dilemma where Vaughn thinks his friend's wife is cheating. "When We Were Young" is about Franceschi's relationship with his parents. Barnes said it was their most experimental song. On 1 August 2011, "Sinners Never Sleep" was announced for released in October. In addition, its track listing and artwork were revealed. "Loverboy" was made available for streaming on 12 August. Later that month, the band appeared at the V, Reading and Leeds Festivals, and went on a co-headlining Australian tour