Central Bureau of Investigation (CBI)

The Central Bureau of Investigation is India's premier domestic crime investigating agency, operating under the Delhi Special Police Establishment Act to probe complex corruption, economic offences, and high-profile criminal cases.

Under Indian Polity & Governance

• It serves as a critical case study in GS Paper II for evaluating federal friction, particularly regarding the constitutional requirement of general consent from state governments.
• The institutional autonomy and supervisory mechanism of the agency, including its relationship with the Central Vigilance Commission, frequently feature in discussions on administrative reforms and anti-corruption architecture.
• Its operational mandate over state subjects under court directives highlights the constitutional balance between national investigative needs and state police jurisdiction.

UPSC typically examines the agency through the lens of administrative reforms and federal governance, focusing on structural bottlenecks like state consent and executive oversight. Questions often ask candidates to evaluate measures for enhancing its statutory autonomy, functional independence, and coordination with state agencies. Candidates are also expected to analyze the impact of judicial interventions on the agency's accountability and investigatory credibility.

• Security forces and agencies: roles, mandates GS3