law: 20. Certain officers to assist in inquiry, etc.-
  The following officers shall assist the authorities in the enforcement of this Act, namely:-
  (a) income-tax authorities appointed under sub-section (1) of section 117 of the Income-tax Act, 1961 (43 of 1961);
  (b) officers of the Customs and Central Excise Departments;
  (c) officers appointed under sub-section (1) of section 5 of the Narcotic Drugs and Psychotropic Substances Act, 1985 (61 of 1985);
  (d) officers of the stock exchange recognised under section 4 of the Securities Contracts (Regulation) Act, 1956 (42 of 1956);
  (e) officers of the Reserve Bank of India constituted under sub-section (1) of section 3 of the Reserve Bank of India Act, 1934 (2 of 1934);
  (f) police;
  (g) officers of enforcement appointed under sub-section (1) of section 36 of the Foreign Exchange Management Act, 1999 (40 of 1999);
  (h) officers of the Securities and Exchange Board of India established under section 3 of the Securities and Exchange Board of India Act, 1992 (15 of 1992);
  (i) officers of any other body corporate constituted or established under a Central or a State Act; and
  (j) such other officers of the Central Government, State Government, local authorities or banking companies as the Central Government may, by notification, specify, in this behalf.