972 F.3d 177
3d Cir.2020Background
- In January 2001 Curtis Haith was murdered; police collected DNA and other physical evidence and interviewed attendees of parties that night, including Crystal Weimer. DNA did not match Weimer but investigators later focused on her.
- In late 2002–2003 investigators and prosecutors (including District Attorney Nancy Vernon) pursued witness statements, bite-mark analysis, pond searches, and interviews that implicated Weimer; Vernon participated in and directed some investigative steps.
- Vernon approved a criminal complaint in December 2003; Weimer was arrested in January 2004, tried, and convicted in 2006. DNA and other later developments undermined the case; bite-mark expert later recanted and jailhouse-informant letters emerged. Convictions were vacated in 2015 and charges dropped with prejudice in 2016.
- Weimer sued under 42 U.S.C. § 1983 alleging malicious prosecution, civil-rights conspiracy, and failure to intervene (among other claims); the district court dismissed prosecutorial-advocacy claims as absolutely immune but allowed claims premised on investigatory conduct to proceed and denied qualified immunity on failure-to-intervene.
- On interlocutory appeal, the Third Circuit held Vernon has absolute immunity only for approving/filing the criminal complaint; alleged investigatory acts (crime-scene involvement, directing interviews, relying on inconsistent witnesses) are not protected by absolute immunity. But Vernon is entitled to qualified immunity for the failure-to-intervene claim and for directing investigation into the timing of the bite mark. The case was affirmed in part, reversed in part, and remanded.
Issues
| Issue | Plaintiff's Argument | Defendant's Argument | Held |
|---|---|---|---|
| Whether Vernon is entitled to absolute prosecutorial immunity for all alleged conduct | Weimer: Vernon engaged in investigatory acts (crime scene, interviews, dive search, bite-mark work) that underlie her §1983 claims, so absolute immunity should not bar discovery or the claims | Vernon: As prosecutor, she is immune for acts closely related to prosecution and presentation of the state’s case | Held: Absolute immunity applies only to Vernon’s approval/filing of the criminal complaint; alleged investigatory acts are not clearly protected and claims based on them may proceed |
| Whether Vernon’s crime-scene involvement and direction of investigative activity are prosecutorial functions | Weimer: Vernon’s on-scene direction and investigation were investigative, not advocacy | Vernon: Her participation was part of prosecution function and thus immune | Held: On-scene direction and investigatory participation were investigatory; absolute immunity does not clearly cover them |
| Whether Vernon is entitled to qualified immunity for alleged failure to intervene in unconstitutional police investigation | Weimer: Vernon had realistic opportunities and duty to intervene to stop constitutional violations | Vernon: No clearly established law then held that a prosecutor had a duty to intervene in police investigations, so qualified immunity applies | Held: Qualified immunity applies—no clearly established precedent at the time imposing a prosecutor duty to intervene in investigative misconduct |
| Whether Vernon is entitled to qualified immunity for directing investigation into timing of bite-mark evidence | Weimer: Directing further bite-mark inquiry (and asking expert to change timing opinion) was deliberate and constitutional violation | Vernon: Bite-mark evidence was accepted at the time; a reasonable prosecutor would not have known it violated rights | Held: Qualified immunity applies—the unreliability of bite-mark evidence was not clearly established then, so Vernon shielded for that conduct |
Key Cases Cited
- Imbler v. Pachtman, 424 U.S. 409 (prosecutors entitled to absolute immunity for advocacy functions)
- Mitchell v. Forsyth, 472 U.S. 511 (immunity-related orders may be immediately appealable under collateral-order doctrine)
- Burns v. Reed, 500 U.S. 478 (recognition of common-law immunities in §1983 context)
- Buckley v. Fitzsimmons, 509 U.S. 259 (distinguishing prosecutorial advocacy from investigative acts)
- Kalina v. Fletcher, 522 U.S. 118 (prosecutorial acts in preparing and filing charging documents protected by absolute immunity)
- Ashcroft v. al-Kidd, 563 U.S. 731 (clearly established-law inquiry must avoid high-level generalities)
- Plumhoff v. Rickard, 572 U.S. 765 (qualified immunity standard and ‘‘reasonable official’’ framing)
- District of Columbia v. Wesby, 138 S. Ct. 577 (clearly established law requires close controlling or robust consensus authority)
- Odd v. Malone, 538 F.3d 202 (Third Circuit: prosecutorial immunity covers judicial-phase actions but not investigative evidence-gathering)
- Fogle v. Sokol, 957 F.3d 148 (recent Third Circuit treatment of prosecutorial immunity and investigatory conduct)