Explanation:

The Central Bureau of Investigation (CBI) was set up in 1963 by a resolution of the Ministry of Home Affairs. Later, it was transferred to the Ministry of Personnel and now it enjoys the status of an attached office. The Special Police Establishment (which looked into vigilance cases) setup in 1941 was also merged with the CBI. The establishment of the CBI was recommended by the Santhanam Committee on Prevention of Corruption (1962–1964). The CBI is not a statutory body. It derives its powers from the Delhi Special Police Establishment Act, of 1946. • The functions of CBI are: o Investigating cases of corruption, bribery, and misconduct of Central government employees. Hence statement (a) is correct. o Investigating cases relating to infringement of fiscal and economic laws, that is, breach of laws concerning export and import control, customs and central excise, income tax, foreign exchange regulations, and so on. However, such cases are taken up either in consultation with or at the request of the department concerned. o Investigating serious crimes, having national and international ramifications, committed by organized gangs of professional criminals. Hence statement (c) is correct. o Coordinating the activities of the anticorruption agencies and the various state police forces o Taking up, on the request of a state government, any case of public importance for investigation. o Maintaining crime statistics and disseminating criminal information. Hence statement (d) is correct. • Probing terror attacks including bomb blasts, hijacking of aircraft and ships, attacks on nuclear installations, and use of weapons of mass destruction is the function of the National Investigation Agency. Hence option (b) is not correct.