The Central Bureau of Investigation (CBI) is the foremost investigating police agency in India, an elite force which plays a role in public life and ensuring the health of the national economy. It is under the jurisdiction of the Government of India. The CBI is involved in major criminal probes, and is the Interpol agency in India. The CBI was established in 1941 as the Special Police Establishment, tasked with domestic security. It was renamed the Central Bureau of Investigation on 1 April 1963. Its motto is “Industry, Impartiality, Integrity”.
Agency headquarters is in the Indian capital, New Delhi, with field offices located in major cities throughout India. The CBI is overseen by the Department of Personnel and Training of the Ministry of Personnel, Public Grievances and Pensions of the Union Government, headed by a Union Minister who reports directly to the Prime Minister. While analogous in structure to the Federal Bureau of Investigation in the United States of America, the CBI’s powers and functions are limited to specific crimes by Acts (primarily the Delhi Special Police Establishment Act, 1946). The current CBI director is Anil Sinha.
| Formed | 1 April 1963 |
| Preceding agency | Special Police Establishment (SPE) (1941) |
| Employees | Sanctioned: 6590 Actual: 5666 Vacant: 924 (14%) as on 31 December 2011[1] |
| Annual budget |  303.79 crore (US$49 million) (2011-2012) |
| Legal personality | Governmental: Government agency |