The Bomb Detection and Disposal (BDD) squad was formed in 1991, making the Tamil Nadu Police force a pioneer in the country. This elite unit has been continuously striving hard to alleviate the bomb menace by its prompt and quick detection / disposal of bombs. The BDD wing was formed by appointing well experienced and dedicated Ex-Army personnel who had served in the National Security Guard (NSG) and the Bureau of Civil Aviation Security (BCAS).