Vocation : Law : Police

Alphonse Bertillon (French: [bɛʁtijɔ̃]; 22 April 1853 – 13 February 1914) was a French police officer and biometrics researcher who applied the anthropological technique of anthropometry to law enforcement creating an identification system based on physical measurements. Anthropometry was the first scientific system used by police to identify criminals. Before that time, criminals could only be identified by name or photograph. The method was eventually supplanted by fingerprinting.He is also the inventor of the mug shot. Photographing of criminals began in the 1840s only a few years after the invention of photography, but it was not until 1888 that Bertillon standardized the process.
His flawed evidence was used to wrongly convict Alfred Dreyfus in the infamous Dreyfus affair.

Frédéric Péchenard (born 12 March 1957 in Neuilly-sur-Seine) is a French police officer and high civil servant with the Ministry of the Interior. He has served as General Director of the French National Police from 11 June 2007 to May 2012.

Dr. Donald Ray Cressey (April 27, 1919 – July 21, 1987) was an American penologist, sociologist, and criminologist who made innovative contributions to the study of organized crime, prisons, criminology, the sociology of criminal law, white-collar crime.

Arturo Bocchini (Italian pronunciation: [arˈturo bokˈkini]; 12 February 1880 – 20 November 1940) was an Italian civil servant, who was appointed Chief of the Police under the Fascist regime of Benito Mussolini. Bocchini held the office from September 1926 until his death in November 1940, becoming a key figure in the Italian regime.
He was the head both of the regular police (State Police) and the secret police (OVRA) which was a pervasive national security agency that operated at all levels of Italian society. Bocchini only reported directly to the Duce and operated autonomously without interference from the National Fascist Party and the state prefects. His power within the government led to him being called the "Vice Duce".