Editorial Notes Codification Section 43a, acts May 14, 1937, ch. 180, § 1, 50 Stat. 145 ; Mar. 28, 1938, ch. 55, § 1, 52 Stat. 128 , related to use by narcotics agents of motor vehicles confiscated pursuant to section 43 of this title . Section 43b, acts May 6, 1939, ch. 115, title I, § 1, 53 Stat. 663 ; Mar. 25, 1940, ch. 71, title I, 54 Stat. 63 , related to use by narcotics agents of motor vehicles confiscated pursuant to section 157 of this title . See section 3616 of Title 18 , Crimes and Criminal Procedure.