[PAR] [TLE] Frank Serpico [SEP] Francesco Vincent Serpico (born April 14, 1936) is a former American New York City Police Department (NYPD) officer who holds both American and Italian citizenship.  He is known for whistleblowing on police corruption in the late 1960s and early 1970s, an act that prompted Mayor John V. Lindsay to appoint the landmark Knapp Commission to investigate the NYPD.  Much of Serpico's fame came after the release of the 1973 film "Serpico", which was based on the book by Peter Maas and which starred Al Pacino in the title role, for which Pacino was nominated for an Oscar. [PAR] [TLE] Knapp Commission [SEP] The Commission to Investigate Alleged Police Corruption (known informally as the Knapp Commission, after its chairman Whitman Knapp) was a five-member panel initially formed in April 1970 by Mayor John V. Lindsay to investigate corruption within the New York City Police Department.  The creation of the commission was largely a result of the publicity generated by the public revelations of police corruption made by Patrolman Frank Serpico and Sergeant David Durk.  The commission confirmed the existence of widespread corruption and made a number of recommendations.
[PAR] [TLE] Frank Serpico [ SEP ] Francesco Vincent Serpico ( born April 14 , 1936 ) is a former American New York City Police Department ( NYPD ) officer who holds both American and Italian citizenship . He is known for whistleblowing on police corruption in the late 1960s and early 1970s , an act that prompted Mayor John V. Lindsay to appoint the landmark Knapp Commission to investigate the NYPD . Much of Serpico 's fame came after the release of the 1973 film " Serpico " , which was based on the book by Peter Maas and which starred Al Pacino in the title role , for which Pacino was nominated for an Oscar . [PAR] [TLE] Knapp Commission [ SEP ] The Commission to Investigate Alleged Police Corruption ( known informally as the Knapp Commission , after its chairman Whitman Knapp ) was a five - member panel initially formed in April 1970 by Mayor John V. Lindsay to investigate corruption within the New York City Police Department . The creation of the commission was largely a result of the publicity generated by the public revelations of police corruption made by Patrolman Frank Serpico and Sergeant David Durk . The commission confirmed the existence of widespread corruption and made a number of recommendations .
The Commission to Investigate Alleged Police Corruption (known informally as the Knapp Commission) became informed of Frank Serpico's police corruption by him doing what?
The Commission to Investigate Alleged Police Corruption ( known informally as the Knapp Commission ) became informed of Frank Serpico 's police corruption by him doing what ?
whistleblowing
whistleblowing