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
Detective fiction "Detective Conan" got that kind of unflattering reputation. Although Mori is actually a private investigator with his own agency, the police never intentionally consult him as he stumbles from one crime scene to another. The role and legitimacy of coincidence has frequently been the topic of heated arguments ever since Ronald A. Knox categorically stated that "no accident must ever help the detective" (Commandment No. 6 in his "Decalogue"). Technological progress has also rendered many plots implausible and antiquated. For example, the predominance of mobile phones, pagers, and PDAs has significantly altered the previously dangerous situations in which investigators traditionally