Prime Minister Narendra Modi inaugurated the diamond jubilee celebrations of the Central Bureau of Investigation (CBI). During the programme, an investiture ceremony for recipients of the President's Police Medal for Distinguished Service and Gold Medal for Best Investigating Officers of the CBI will be held wherein he will present medals to the recipients. He also inaugurated the newly constructed office complexes of the CBI in Shillong, Pune and Nagpur. He will release a postage stamp and a commemorative coin marking the diamond jubilee celebration year of the CBI. About Central Bureau of Investigation: The Delhi Special Police Establishment Act, 1946, was passed by Parliament in 1946. The purpose of the Act was to establish a Special Police Establishment, a specialized organization tasked with conducting inquiries and investigations into certain crimes. The Central Bureau of Investigation was established in 1963 as a result of a resolution passed by the Indian government. It provides assistance to the Central Vigilance Commission and Lokpal. It is also the nodal police agency in India which coordinates investigation on behalf of Interpol Member countries. Committee related to CBI: Committee on Prevention of Corruption (Santhanam Committee).