Whether an officer sued for a Fourth Amendment violation may receive qualified immunity when clearly established law states the general warrant-and-probable-cause rule, but a reasonable officer could have believed the particular search was supported by probable cause and exigent circumstances.
Holding
Yes. Qualified immunity turns on whether, in light of clearly established law and the information available to the officer, a reasonable officer could have believed the particular search lawful.
Reasoning
Qualified immunity protects officials performing discretionary functions from damages liability when their conduct was objectively legally reasonable under clearly established law. The doctrine seeks to preserve a remedy for constitutional violations while protecting officials from the costs and hesitation produced by insubstantial damages suits.
A court cannot define the allegedly violated right at an excessively abstract level. If the right were framed only as a general right to due process or to be free from unreasonable searches, every constitutional violation would automatically defeat immunity. The right instead must be particularized enough that its contours would make the unlawfulness of the officer’s conduct apparent to a reasonable official.
The Eighth Circuit therefore erred by stopping at the general proposition that warrantless home searches require probable cause and exigent circumstances. That proposition did not itself answer whether, under the facts confronting Anderson, a reasonable officer could have concluded that probable cause and exigent circumstances existed.
The inquiry remains objective, even though it is fact-specific. The relevant question is not Anderson’s personal belief or intent, but whether a reasonable officer possessing the information available to the searching officers could have believed the search lawful under clearly established Fourth Amendment principles.
The Court did not decide that Anderson was in fact immune. On remand, the lower court was to determine first whether the conduct alleged by the Creightons could reasonably have been thought lawful. If Anderson’s asserted facts materially differed from the Creightons’ account, narrowly tailored discovery might be necessary to resolve the immunity question.