In the United States, qualified immunity is a legal principle of federal constitutional law that grants government officials performing discretionary (optional) functions immunity from lawsuits for damages unless the plaintiff shows that the official violated "clearly established statutory or constitutional rights of which a reasonable person would have known". It is a form of sovereign immunity less strict than absolute immunity that is intended to protect officials who "make reasonable but mistaken judgments about open legal questions", extending to "all [officials] but the plainly incompetent or those who knowingly violate the law". Qualified immunity applies only to government officials in civil litigation, and does not protect the government itself from suits arising from officials' actions.
The U.S. Supreme Court first introduced the qualified immunity doctrine in Pierson v. Ray (1967), a case litigated during the height of the civil rights movement. It is stated to have been originally introduced with the rationale of protecting law enforcement officials from frivolous lawsuits and financial liability in cases where they acted in good faith in unclear legal situations. Starting around 2005, courts increasingly applied the doctrine to cases involving the use of excessive or deadly force by police, leading to widespread criticism that it "has become a nearly failsafe tool to let police brutality go unpunished and deny victims their constitutional rights" (as summarized in a 2020 Reuters report).
History and background
Pierson v. Ray
In Pierson v. Ray (1967), the Supreme Court first "justified qualified immunity as a means of protecting government defendants from financial burdens when acting in good faith in legally murky areas. Qualified immunity was necessary, according to the Court, because '[a] policeman's lot is not so unhappy that he must choose between being charged with dereliction of duty if he does not arrest when he had probable cause, and being mulcted in damages if he does.'"
Bivens and 42 USC § 1983 lawsuits
Qualified immunity frequently arises in civil rights cases, particularly in lawsuits arising under 42 USC § 1983 and Bivens v. Six Unknown Named Agents (1971). Under 42 USC § 1983, a plaintiff can sue for damages when state officials violate their constitutional rights or other federal rights. The text of 42 USC § 1983 reads as follows:
Every person who, under color of any statute, ordinance, regulation, custom, or usage, of any State or Territory or the District of Columbia, subjects, or causes to be subjected, any citizen of the United States or other person 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 ...
Similarly, under Bivens v. Six Unknown Named Agents, plaintiffs may sue for damages if federal officials violate their constitutional rights. However, not all Constitutional violations give rise to a Bivens cause of action. Thus far the Supreme Court has recognized Bivens claims for violations of the Fourth Amendment, the Fifth Amendment's equal protection component of due process, and the Eighth Amendment.
Harlow v. Fitzgerald
The modern test for qualified immunity was established in Harlow v. Fitzgerald (1982).
Prior to Harlow v. Fitzgerald, the U.S. Supreme Court granted immunity to government officials only if: (1) the official believed in good faith that their conduct was lawful, and (2) the conduct was objectively reasonable. However, determining an official's subjective state of mind (i.e. did they have a good faith belief that their action was lawful) required a trial, often by jury. Concerns over allowing suits to go this far deterred officials from performing their duties, "[diverted] official energy from pressing public issues, and [deterred] able citizens from acceptance of public office", the Supreme Court handed down the current rule for qualified immunity: "[G]overnment officials performing discretionary functions generally are shielded from liability for civil damages insofar as their conduct does not violate clearly established statutory or constitutional rights of which a reasonable person would have known." Therefore, the application of qualified immunity no longer depends upon an official's subjective state of mind, but on whether or not a reasonable person in the official's position would have known their actions were in line with clearly established legal principles.