Majority — O’Connor J.
delivered the opinion of the Court.
This ease asks us to consider whether 21 U. S. C. § 846 , the drug conspiracy statute, requires the Government to prove that a conspirator committed an overt act in furtherance of the conspiracy. We conclude that it does not.
I
According to the grand jury indictment, Reshat Shabani participated in a narcotics distribution scheme in Anchorage, Alaska, with his girlfriend, her family, and other associates. Shabani was allegedly the supplier of drugs, which he arranged to be smuggled from California. In an undercover operation, federal agents purchased cocaine from distributors involved in the conspiracy.
Shabani was charged with conspiracy to distribute cocaine in violation of 21 U. S. C. § 846 . He moved to dismiss the indictment because it did not allege the commission of an overt act in furtherance of the conspiracy, which act, he argued, was an essential element of the offense. The United States District Court for the District of Alaska, Hon.. H. Russel Holland, denied the motion, and the case proceeded to trial. At the close of evidence, Shabani again raised the issue and asked the court to instruct the jury that proof of an overt act was required for conviction. The District Court noted that Circuit precedent did not require the allegation of an overt act in the indictment but did require proof of such an act at trial in order to state a violation of § 846. Recognizing that such a result was “totally illogical,” App. 29, and contrary to the language of the statute, Judge Holland rejected Shabani’s proposed jury instruction, id., at 36 . The jury returned a guilty verdict, and the court sentenced Shabani to 160 months’ imprisonment.
The United States Court of Appeals for the Ninth Circuit reversed. 993 F. 2d 1419 (1993). The court acknowledged an inconsistency between its cases holding that an indictment under § 846 need not allege an overt act and those re
Chief Judge Wallace wrote separately to point out that in no other circumstance could the Government refrain from alleging in the indictment an element it had to prove at trial. He followed the Circuit precedent but invited the Court of Appeals to consider the question en banc because the Ninth Circuit, “contrary to every other circuit, clings to a problematic gloss on 21 U. S. C. § 846 , insisting, despite a complete lack of textual support in the statute, that in order to convict under this section the government must prove the commission of an overt act in furtherance of the conspiracy.” 993 F. 2d, at 1422 (concurring opinion). For reasons unknown, the Court of Appeals did not grant en banc review. We granted certiorari, 510 U. S. 1108 (1994), to resolve the conflict between the Ninth Circuit and the 11 other Circuits that have addressed the question, all of which have held that § 846 does not require proof of an overt act.[1]
* See United States v. Sassi, 966 F. 2d 283 , 285 (CA7), cert. denied, 506 U. S. 991 (1992); United States v. Clark, 928 F. 2d 639 , 641 (CA4 1991); United States v. Figueroa, 900 F. 2d 1211 , 1218 (CA8), cert. denied, 496 U. S. 942 (1990); United States v. Paiva, 892 F. 2d 148 , 155 (CA1 1989); United States v. Onick, 889 F. 2d 1425 , 1432 (CA5 1989); United States v. Cochran, 883 F. 2d 1012 , 1017-1018 (CA11 1989); United States v. Savaiano, 843 F. 2d 1280 , 1294 (CA10 1988); United States v. Pumphrey, 831 F. 2d 307 , 308-309 (CADC 1987); United States v. Bey, 736 F. 2d 891 , 894 (CA3 1984); United States v. Dempsey, 733 F. 2d 392 , 396 (CA6), *13 cert. denied, 469 U. S. 983 (1984); United States v. Knuckles, 581 F. 2d 305 , 311 (CA2), cert. denied, 439 U. S. 986 (1978).
II
Nash and Singer follow the settled principle of statutory construction that, absent contrary indications, Congress intends to adopt the common law definition of statutory terms. See Molzof v. United States, 502 U. S. 301 , 307-308 (1992). We have consistently held that the common law understand
As to those views, we find it instructive that the general conspiracy statute, 18 U. S. C. § 371 , contains an explicit requirement that a conspirator “do any act to effect the object of the conspiracy.” In light of this additional element in the general conspiracy statute, Congress’ silence in § 846 speaks volumes. After all, the general conspiracy statute preceded and presumably provided the framework for the more specific drug conspiracy statute. “Nash and Singer give Congress a formulary: by choosing a text modeled on §371, it gets an overt-act requirement; by choosing a text modeled on the Sherman Act, 15 U. S. C. § 1 , it dispenses with such a requirement.” United States v. Sassi, 966 F. 2d 283 , 284 (CA7 1992). Congress appears to have made the choice quite deliberately with respect to § 846; the same Congress that passed this provision also enacted the Organized Crime Control Act of 1970, Pub. L. 91-452, 84 Stat. 922 , § 802(a) of which contains an explicit requirement that “one or more of [the conspirators] does any act to effect the object of such a conspiracy,” id., at 936 , codified at 18 U. S. C. § 1511 (a).
What the Ninth Circuit failed to recognize we now make explicit: In order to establish a violation of 21 U. S. C. § 846 , the Government need not prove the commission of any overt acts in furtherance of the conspiracy. United States v. Felix, 503 U. S. 378 (1992), is not to the contrary. In that case, an indictment under § 846 alleged two overt acts which had formed the basis of the defendant’s prior conviction for attempting to manufacture drugs. The defendant argued that the Government had violated the Double Jeopardy Clause and Grady v. Corbin, 495 U. S. 508 (1990), overruled, United States v. Dixon, 509 U. S. 688 (1993), by using evidence underlying the prior conviction “to prove an essential element of an offense” charged in the second prosecution. We held that the Double Jeopardy Clause did not bar the conspiracy charge. Justice Stevens, writing separately, thought that our double jeopardy discussion was unnecessary partly because “there is no overt act requirement in the federal drug conspiracy statute,” Felix, supra, at 392 (Stevens, J., concurring in part and concurring in judgment). Shabani argues that, by not responding to this point, the Court im
Shabani reminds us that the law does not punish criminal thoughts and contends that conspiracy without an overt act requirement violates this principle because the offense is predominantly mental in composition. The prohibition against criminal conspiracy, however, does not punish mere thought; the criminal agreement itself is the actus reus and has been so viewed since Regina v. Bass, 11 Mod. 55, 88 Eng. Rep. 881, 882 (K. B. 1705) (“[T]he very assembling together was an overt act”); see also Iannelli v. United States, 420 U. S. 770 , 777 (1975) (“Conspiracy is an inchoate offense, the essence of which is an agreement to commit an unlawful act”) (citations omitted).
As the District Court correctly noted in this case, the plain language of the statute and settled interpretive principles reveal that proof of an overt act is not required to establish a violation of 21 U. S. C. § 846 . Accordingly, the judgment of the Court of Appeals is
Reversed.
Cases cited
- 993 F. 2d 1419 993 F. 2d 1419 at 1420, at 1422 p. 10, p. 12
- 650 F. 2d 1133 650 F. 2d 1133 p. 12
- 510 U. S. 1108 510 U. S. 1108 at 1265 p. 12, p. 13
- Nash v. United States 229 U. S. 373 at 378 p. 13, p. 14
- Singer v. United States 323 U. S. 338 at 340 p. 13, p. 14
- Molzof v. United States 502 U. S. 301 p. 13
- Collins v. Hardyman 341 U. S. 651 p. 14
- Bannon v. United States 156 U. S. 464 p. 14
- Grunewald v. United States 353 U. S. 391 p. 14
- 966 F. 2d 283 966 F. 2d 283 at 936 p. 14
- 552 F. 2d 860 552 F. 2d 860 p. 15
- 431 U. S. 972 431 U. S. 972 p. 15
- United States v. Feola 420 U. S. 671 p. 15
- 493 F. 2d 305 493 F. 2d 305 p. 15
- 419 U. S. 834 419 U. S. 834 p. 15
- United States v. Rabinowich 238 U. S. 78 p. 15
- 521 F. 2d 61 521 F. 2d 61 p. 15
- 488 F. 2d 484 488 F. 2d 484 p. 15
- 872 F. 2d 805 872 F. 2d 805 p. 15
- 843 F. 2d 1280 843 F. 2d 1280 p. 15
- United States v. Felix 503 U. S. 378 at 392 p. 15, p. 16
- Grady v. Corbin 495 U. S. 508 p. 15
- 509 U. S. 688 509 U. S. 688 p. 15
- 926 F. 2d 1522 926 F. 2d 1522 p. 16
- Illinois State Board of Elections v. Socialist Workers Party 440 U. S. 173 p. 16
- Webster v. Fall 266 U. S. 507 p. 16
- Iannelli v. United States 420 U. S. 770 p. 16
- Beecham v. United States 511 U. S. 368 p. 17
- Smith v. United States 508 U. S. 223 at 239 p. 17