Correct Answer : All of the above
Following are the functions of CBI :
1. Investigating cases of corruption by Central government employees.
2. Investigating cases relating to infringement of fiscal and economic laws.
3. Investigating serious crimes both with national and international links.
4. Coordinating the activities of the anti-corruption agencies and the various state police forces.
5. Taking up any case of public importance for investigation on the request of a state government.
6. Maintaining crime statistics and disseminating criminal information.