"CBI enjoys functional autonomy for the investigation of cases. It derives its autonomy and power from the Delhi Special Police Establishment Act, 1946," the Minister said in a written reply on a question about measures government would take for fair investigation into VVIP helicopter deal.
"It functions within the parameters of law and conducts investigation/inquiries as per provisions of Criminal Procedure Code 1973/CBI manual," he said.
Six cases were referred to CBI for investigation in foreign countries, Narayanasamy said.
Replying to question whether record of CBI in probing of cases in foreign countries has been very bleak, he said, "No Sir. CBI has been conducting its investigation in a professional and impartial manner.
"However, such investigation depends upon several factors, including cooperation extended by the country concerned, language used in the country concerned etc.