delivered the opinion of the Court.
In Jаnuary 1973, a judge of the 229th District Court of Duval County, Tex., enjoined the production of minerals from certain oil leases owned by respondents. In June 1975, the injunction was dissolved by an appellate court as having been illegally issued. Respondents then filed a complaint in the United States District Court purporting to state a cause of action for damages under 42 U. S. C. § 1983. 1 Defendants were the Duval County Ranch Co., Inc., which had obtained the injunction, the sole owner of the corporation, the judge who entered the injunction, and the two individual *26 sureties on the injunction bond, one of whom is now petitioner in this Court. Essentially, the claim was that the injunction had been corruptly issued as the result of a conspiracy bеtween the judge and the other defendants, thus causing a deprivation of property, i. e., two years of oil production, without due process of law.
All defendants moved to dismiss, the judge asserting judicial immunity and the other defendants urging dismissal for failure to allege action “under color” of state law, а necessary component of a § 1983 cause of action. The District Court concluded that because the injunction was a judicial act within the jurisdiction of the state court, the judge was immune from liability in a § 1983 suit, whether or not the injunctiоn had issued as the result of a corrupt conspiracy. Relying on
Haldane
v.
Chagnon,
In a
per curiam
opinion, a panel of the Court of Appeals for the Fifth Circuit affirmed, agreeing that the judge was immune from suit and that because “the remaining defendants, who are all private citizens, did not conspire with any person against whom a valid § 1983 suit can be stated,”
Sparks
v.
Duval County Ranch Co.,
Based on the doctrine expressed in
Bradley
v.
Fisher,
As the Court of Appeals correctly understood our cases to hold, to act “under color of” state law for § 1983 purposes does not require that the defendant be an officer of the State. It is enough that he is a willful participant in joint action with the State or its agents. Private persons, jointly engaged
*28
with state officials in the challenged action, are acting “under color” of law for purposes of § 1983 actions.
Adickes
v.
S. H. Kress & Co.,
Petitioner nevertheless insists that unless he is held to have an immunity derived from that of the judge, the latter’s official immunity will be seriously eroded. We are unpersuaded. The immunities of state officials that we have recognized for purposes of § 1983 are the equivalents of those that were recognized at common law,
Owen
v.
City of Independence,
In
Gravel
v.
United States,
It is urged that if petitioner and other private co-conspirators of the judge are to be subject to § 1983 damages actions and if a case such as this is to go to trial, the charge of conspiracy and judicial corruption will necessarily be aired and decided, the consequence being that the judge, though not a party and immune from liability, will be heavily involved, vеry likely as a witness forced to testify about and defend his judicial conduct. It is true that, based on the Speech or Debate Clause, we have held that Members of Congress need not respond to questions about their legislative acts,
Gravel
v.
United States, supra,
at 616-617; and, in general, the scope of state legislative immunity for purposes of § 1983 has been patterned after immunity under the Speech or Debate Clause.
Supreme Court of Virginia
v.
Consumers Union,
Of course, testifying takes time and energy that otherwise might be devoted to judicial duties; and, if cases such as this
*31
survive initial challenge and go to trial, the judge’s integrity and that of the judicial process may be at stake in such cases. But judicial immunity was not designed to insulate the judiciary from all aspects of public accountability. Judges arе immune from § 1983 damages actions, but they are subject to criminal prosecutions as are other citizens.
O’Shea
v.
Littleton,
Judicial immunity arose because it was in the public interest to have judges who were at liberty to exercise their independent judgment about the merits of a case without fear of being mulcted for damages should an unsatisfied litigant be able to convince another tribunal that the judge acted not only mistakenly but with malice and corruption.
Pierson
v.
Ray, supra,
at 554;
Bradley
v.
Fisher,
The judgment of the Court of Appeals is
Affirmed.
Notes
Title 42 U. S. C. § 1983 provides:
“Every person who, under color of any statute, ordinance, regulation, custom, or usage, of any State or Territory, subjects, or causes to be subjected, any citizen of the United States or other pеrson within the jurisdiction thereof to the deprivation of any rights, privileges, or immunities secured by the Constitution and laws, shall be liable to the party injured in an action at law, suit in equity, or other proper proceeding for redress.”
Slavin
v.
Curry,
Kurz
v.
Michigan,
In this respect, our holding in Adickes v. S. H. Kress & Co. was as follows:
“The involvement of a state official in such a conspiracy plainly provides the state action essential to show a direct violation of petitioner’s Fourteenth Amendment equal protection rights, whether or not the actions of the police were officially authorized, or lawful; Monroe v. Pape,365 U. S. 167 (1961); see United States v. Classic,313 U. S. 299 , 326 (1941); Screws v. United States,325 U. S. 91 , 107-111 (1945); Williams v. United States,341 U. S. 97 , 99-100 (1951). Moreover, a private party involved in such a conspiracy, even though not an official of the State, can be liable under § 1983. ‘Private persons, jointly engaged with state officials in the prohibited action, are acting “under color” оf law for purposes of the statute. To act “under color” of law does not require that the accused be an officer of the State. It is enough that he is a willful participant in joint activity with the State or its agents,’ United States v. Price,383 U. S. 787 , 794 (1966).”398 U. S., at 152 . (Footnote omitted.)
Title 18 U. S. C. § 242, the criminаl analog of § 1983, also contains a color-of-state-law requirement ^nd we have interpreted the color-of-state-law requirement in these sections coextensively.
Adickes
v.
S. H. Kress & Co., supra,
at 152, n. 7. A state judge can be found criminally liable under § 242 аlthough that judge may be immune from damages under § 1983. See
Imbler
v.
Pachtman,
Insofar as the immunity issue is concerned, it is interesting to note that petitioner observes that he would not be immune in thе Texas courts, even if the judge is. Brief for Petitioner 28.
Whether the federal courts should be especially alert to avoid undue interference with the state judicial system flowing from demands upon state judges to appear as witnesses need not be addressed at this time.
