
The Central Bureau of Investigation (CBI) was established in 1963 by a resolution of the Ministry of Home Affairs. Its origins lie in the Special Police Establishment (SPE) created in 1941 by the Government of India. The SPE’s functions initially pertained to investigating bribery and corruption during World War II. Later, the Delhi Special Police Establishment Act of 1946 brought the SPE under the Department of Home, expanding its mandate to cover specified offences beyond those related to the war. The CBI replaced the SPE, inheriting its personnel and functions. While the CBI derives its powers to investigate from the DSPE Act, it is not a statutory body.
The motto of the CBI is “Industry, Impartiality, Integrity”. Its mission includes investigating corruption, economic offences, and other serious crimes, contributing to maintaining law and order, and ensuring public trust through proactive and effective policing. The vision of the CBI is to be an internationally respected premier investigating agency committed to the rule of law and the pursuit of justice.
The CBI is headed by a director. For administrative purposes, it is divided into various branches and specialised units to handle different types of crimes and investigations. These include divisions focusing on anti-corruption, economic offences, special crimes, and policy and coordination.
Originally (1963), the CBI was set up with the following six divisions:
(i) Investigation and Anti-Corruption Division (Delhi Special Police Establishment)
(ii) Technical Division
(iii) Crime Records and Statistics Division
(iv) Research Division
(v) Legal and General Division
(vi) Administration Division
At present (2019), the CBI has the following seven divisions:

The CBI comprises police officers and other personnel drawn from various sources, including the Indian Police Service and other government departments. It has its own cadre of investigators and specialists in fields such as forensic science and law. The composition is structured to facilitate effective investigation and prosecution of complex cases.
1. Appointment of CBI Director
2. Tenure

The primary functions of the CBI include investigating cases of bribery, corruption in public services, economic crimes (like bank fraud and financial irregularities), and serious and organised crimes. It also handles special crime cases assigned by the Central Government, High Courts, or the Supreme Court. Furthermore, the CBI plays a role in coordinating with other law enforcement agencies.


According to a Supreme Court ruling, prior approval from the Central Government is necessary for investigating officers of the level of Joint Secretary and above in the Government of India in cases of alleged offences under the Prevention of Corruption Act. This provision aims to protect senior public officials from frivolous or malicious investigations.
The CBI’s jurisdiction generally extends across the country for the cases it is authorised to investigate, unlike state police forces which primarily operate within their respective state boundaries. The CBI typically handles cases with inter-state ramifications, high public interest, or those specifically referred to it by higher authorities, whereas state police deal with a broader range of law and order issues at the state level.
The CBI has its own training academy. The CBI Academy is located in Ghaziabad and serves as the primary training institution for CBI officers and also conducts specialised courses for officers from other police forces and government organisations. It focuses on enhancing investigative skills, legal knowledge, and professional conduct.

The provisions of the Delhi Special Police Establishment Act, 1946 do not enable the CBI to exercise its powers and jurisdiction in any area in a State (not being a railway area) without the consent of the Government of that State.
In other words, the jurisdiction of the CBI can be extended to the States only with the consent of the State Government concerned.
The consent of the state government to CBI can be of two types:

If any state has not given General Consent to the CBI, the CBI has to obtain permission from the state government for each specific case it intends to investigate within that state’s jurisdiction.
The Supreme Court has delivered several landmark judgments to protect the CBI from external interference and to enhance its professionalism and transparency. Some of these judgments are:

The challenges faced by the Central Bureau of Investigation (CBI) are:
Political Interference – Time and again, the CBI has been accused of being influenced by the political establishment and lacking true independence in its investigations.
Allegations of Bias – There have been allegations of the CBI being biased in its investigations, favoring certain political parties or individuals.
Misuse by the Central Government – Critics argue that successive Central Governments have used the CBI to haunt political opponents and coerce state governments to fall in line.
Accountability Issues – Questions have been raised about the CBI’s accountability mechanisms, with concerns about the lack of proper oversight and transparency in its functioning.
Shortage of Manpower and Resources – The agency has been plagued by a shortage of personnel, infrastructure, and financial resources, hampering its investigative capabilities.
Perception of Ineffectiveness – The CBI’s image has at times been tarnished by perceptions of ineffectiveness, particularly in high-profile cases or when its actions have been perceived as inadequate.
Delayed Investigations – The CBI has been criticized for the slow pace of its investigations, leading to delays in justice and eroding public confidence.

The 24th report of the Department-related Parliamentary Standing Committee on Personnel, Public Grievances, Law and Justice made the following recommendations to strengthen the functioning of the CBI:
The Central Bureau of Investigation (CBI) stands as a crucial pillar in India’s criminal justice system. However, it is faced with several challenges, which hamper its effective functioning. Implementing the above-suggested reforms would be a significant step forward in reinforcing the credibility and effectiveness of the CBI as a vital institution within the Indian polity.