Pinkerton (detective agency) Michigan, New York, Pennsylvania, and West Virginia as well as the Great Railroad Strike of 1877 and the Battle of Blair Mountain in 1921. The company now operates as "Pinkerton Consulting & Investigations, Inc. d.b.a. Pinkerton Corporate Risk Management", a division of the Swedish security company Securitas AB. The former Government Services division, PGS, now operates as Securitas Critical Infrastructure Services, Inc. In the 1850s, Allan Pinkerton, Scottish detective and spy, met Chicago attorney Edward Rucker in a local Masonic Hall and formed the North-Western Police Agency, later known as the Pinkerton Agency. Historian Frank Morn writes: "By the mid-1850s
Dirk Gently's Holistic Detective Agency Dirk Gently's Holistic Detective Agency Dirk Gently's Holistic Detective Agency is a humorous detective novel by English writer Douglas Adams, first published in 1987. It is described by the author on its cover as a "thumping good detective-ghost-horror-who dunnit-time travel-romantic-musical-comedy-epic". The book was followed by a sequel, "The Long Dark Tea-Time of the Soul". The only recurring major characters are the eponymous Dirk Gently, his secretary Janice Pearce and Sergeant Gilks. Adams also began work on another novel, "The Salmon of Doubt", with the intention of publishing it as the third book in the series, but died before completing it.