which apprehended over a hundred gangsters within a 24-hour period in the aftermath of a gunbattle in which city court clerk Frederick Strauss had been shot and killed. Later years In 1913, Dougherty left the NYPD to become a partner in Dougherty's Detective Bureau and Mercantile Police founded by his brother Harry V. Dougherty around the turn of the 20th century. He began writing books and articles on crime and, in 1914, appeared in two silent films, Our Mutual Girl and The Line-Up at Police Headquarters. In 1921, Dougherty became wealthy when oil was found on land he owned in Arizona. He spent the next several years traveling abroad. He spent some time with Arthur Conan Doyle, the creator of Sherlock Holmes. He also executed a commission to sell an art collection valued at $1 million. In 1923, he returned to the police force in a somewhat limited capacity when he agreed to become an instructor at Police Commissioner Richard Edward Enright's school for detectives. Much of his time at the school was concentrated on the study of foreign police systems. In his later years, he advocated the deportation of immigrants convicted of a criminal offense, the elimination of the revolver through federal legislation, a bounty payment to killers of hold-up men and the restoration of the whipping post as punishment for first-time offenders. Death Dougherty died of cancer at his 165th Street residence in Flushing, Queens, on the evening of July 16, 1931. His funeral was held at his home two days later and then buried at Cypress Hills Cemetery. Throughout Europe he was recognized as one of the leading American detectives. Bibliography Books A Word About Criminals (1916) In Europe (1922) The Criminal As A Human Being (1924) Articles "The Public The Criminal's Partner" New Outlook. (August 1913) "The Capture of the Missouri Kid" The Detective Magazine. (July 1923) "The Criminal as a Human Being" Saturday Evening Post. (March 1924) "The Gentle arts of Shadowing and Roping" Saturday Evening Post. (March 1924) "The Third Degree" Saturday Evening Post. (May 1924) "The Stick-Up and House Prowler" Saturday Evening Post. (June 1924) "Combination Lock" Triple-X. (June 1924) "The Stage Management of Crime" Saturday Evening Post. (July 1924) "Meet the Real City Detective" Saturday Evening Post. (September 1924) "The Innocent Guilty" Fawcett's Magazine. (September 1925) "Secrets of the Night Club Racketeers" The Master Detective. (June 1931) "Recovering the $1,000,000 Art Masterpiece"