The Economic Offences Wing is one of the important Special Units of the Police Department functioning in the State of Tamil Nadu as per G.O. Ms. No.1697, Home (Courts-2A) Department, dated: 24.12.1999.The Commercial Crime Investigation wing C.I.D. (CCIW CID) was constituted in G.O. M.S. No.170, Home Department dated: 20.01.1971 to investigate offences relating to defalcation of funds in Co-operative Societies.