21 U.S. Code § 878 - Powers of enforcement personnel
(a) Any officer or employee of the Drug Enforcement Administration or any State, tribal, or local law enforcement officer designated by the Attorney General may—
(2) execute and serve search warrants, arrest warrants, administrative inspection warrants, subpenas, and summonses issued under the authority of the United States;
(3) make arrests without warrant
(B) for any felony, cognizable under the laws of the United States, if he has probable cause to believe that the person to be arrested has committed or is committing a felony;
Source(Pub. L. 91–513, title II, § 508,Oct. 27, 1970, 84 Stat. 1273; Pub. L. 96–132, § 16(b),Nov. 30, 1979, 93 Stat. 1049; Pub. L. 99–570, title I, § 1869,Oct. 27, 1986, 100 Stat. 3207–55; Pub. L. 99–646, § 86,Nov. 10, 1986, 100 Stat. 3620; Pub. L. 111–211, title II, § 232(d),July 29, 2010, 124 Stat. 2278.)
2010—Subsec. (a). Pub. L. 111–211inserted “, tribal,” after “State” in introductory provisions.
1986—Pub. L. 99–570and Pub. L. 99–646amended section substantially identically designating existing provisions as subsec. (a) and adding subsec. (b), with the exception of the amendment of subsec. (a) for which Pub. L. 99–570directed the insertion of “or (with respect to offenses under this subchapter or subchapter II of this chapter) any State or local law enforcement officer” and Pub. L. 99–646directed the insertion of “or any State or local law enforcement officer”, the latter of which was executed to reflect the probable intent of Congress.
1979—Pub. L. 96–132substituted “Drug Enforcement Administration” for “Bureau of Narcotics and Dangerous Drugs”.