Rehberg v. Paulk
The Supreme Court ruled that witnesses who testify before a grand jury get the same complete legal protection from lawsuits as witnesses who testify at trial, even if they are accused of lying under oath.
The decision means a man who was indicted three times and later cleared cannot sue the chief investigator who testified against him, reinforcing broad protections for anyone who takes the witness stand in a criminal case.
“the claims of the individual must yield to the dictates of public policy”
Explaining why witnesses get absolute immunity even when their testimony is challenged as false.
How it got here: A federal trial court let the lawsuit proceed, but the Eleventh Circuit reversed, ruling the investigator had absolute immunity; the Supreme Court agreed to review that ruling.
The Case in Depth
What happened
Charles Rehberg, an accountant, sent anonymous faxes criticizing a Georgia hospital's management. A district attorney's investigator, James Paulk, then helped indict Rehberg three separate times on charges including assault and harassment; all three indictments were eventually dismissed. Rehberg sued Paulk, claiming he had lied to the grand jury and conspired to present false testimony against him.
The question before the Court
If a police investigator gives false testimony to a grand jury, can the person he helped indict later sue him for it?
The Court's answer
No — the Court ruled that a grand jury witness, including a police investigator, has the same complete legal immunity from a civil-rights lawsuit as a witness who testifies at trial, even when accused of lying. This protection covers claims based directly on the testimony and cannot be avoided by framing the lawsuit as a conspiracy to give false testimony.
The Court reasoned that without this protection, witnesses might avoid testifying or shade their testimony out of fear of being sued, and that perjury prosecutions already deter lying under oath. It also rejected the argument that investigators who play a leading role in bringing charges should be treated differently, since it is prosecutors, not witnesses, who make the actual decision to prosecute.
Curious how the Court got there? See the step-by-step legal reasoning →
Why it matters
Police officers, investigators, and ordinary citizens who testify before grand juries can now be confident they cannot be sued for damages over their testimony, even if a defendant is later cleared. This protects the grand jury process from being used as a backdoor lawsuit target, though witnesses who lie can still face criminal perjury charges.
What changes now
This is a final merits decision, not a temporary order. The Eleventh Circuit's ruling in favor of the investigator stands, and Rehberg's lawsuit based on the grand jury testimony cannot proceed. The ruling settles a disagreement among federal appeals courts and will guide how similar lawsuits against grand jury witnesses are handled nationwide going forward.
What this does not decide
The Court made clear its ruling covers only testimony given inside the grand jury room. It does not extend absolute immunity to other conduct, such as officers who falsify sworn statements to get arrest warrants or fabricate evidence outside of their actual testimony, which remain subject to lesser, 'qualified' immunity.
How the Court got there
The legal reasoning, step by step
- The Court explained that lawsuits under the federal civil-rights law, 42 U.S.C. §1983, are read against the backdrop of common-law immunities that existed when the law was passed in 1871, rather than as wiping those protections away.
- Applying a 'functional approach' — looking at what role a government actor is playing rather than their job title — the Court identified trial testimony as one of the functions that has long received absolute immunity, meaning total protection from being sued over it.
- The Court reasoned that grand jury witnesses face the same core concerns as trial witnesses: without protection from lawsuits, witnesses might refuse to testify or shade their testimony out of fear of being sued later, and perjury laws already provide a strong deterrent against lying under oath.
- The Court rejected the argument that a witness who was the 'complaining witness' — historically, a person who personally set a prosecution in motion — should lose this protection, because in the modern grand jury system it is prosecutors, not testifying investigators, who actually decide whether to bring charges.
- The Court also found that allowing lawsuits based on grand jury testimony would threaten grand jury secrecy, since plaintiffs could effectively unmask secret grand jury proceedings by suing and seeking transcripts.
- The Court concluded that a grand jury witness has the same absolute immunity as a trial witness, and that this protection cannot be sidestepped by framing the claim as a conspiracy to give false testimony.
Doctrinal impact
Cases affected by this decision
Reaffirms Briscoe v. LaHue (460 U. S. 325)
The Court relied on and extended this case's rule giving trial witnesses absolute immunity to grand jury witnesses too.
Reaffirms Imbler v. Pachtman (424 U. S. 409)
The Court leaned on this case's reasoning that prosecutors get absolute immunity to support immunity for related witnesses.