Seana Barnett v. Sara MacArthur
956 F.3d 1291
11th Cir.2020Background
- On March 15, 2014, Seminole County Deputy Sara MacArthur arrested Seana Barnett for suspected DUI; at the jail Barnett gave two breath samples that each read 0.000 and a later urine test was negative for drugs.
- Despite negative tests and no evidence of drug impairment, Seminole County’s policy required DUI arrestees to remain in custody for eight hours from arrest; Barnett was held a little over eight hours and released after posting bond.
- Barnett sued under 42 U.S.C. § 1983 (false arrest and unlawful detention) and state-law claims; the district court allowed an unlawful-detention § 1983 claim against Deputy MacArthur and a state-law false-imprisonment claim against the Sheriff to proceed, but granted summary judgment to the Sheriff on the Monell (municipal liability) detention claim. The jury later ruled for defendants on the surviving claims.
- On appeal the Eleventh Circuit reversed the district court only as to the Monell detention claim against the Sheriff and remanded for trial; all other rulings were affirmed.
- The court held that a municipal policy that mandates continued detention can cause a Fourth Amendment violation if officers obtain information showing beyond a reasonable doubt that probable cause has dissipated (here, two 0.000 breath tests and no drug evidence).
Issues
| Issue | Plaintiff's Argument | Defendant's Argument | Held |
|---|---|---|---|
| Whether the Sheriff’s mandatory 8‑hour DUI hold violated the Fourth Amendment when breath tests were 0.000 and no drug evidence existed | Barnett: mandatory hold caused continued, unconstitutional detention after probable cause dissipated | Sheriff: policy is authorized by Fla. Stat. §316.193(9) and justified public‑safety precaution | Reversed summary judgment; issue for jury — policy can violate Fourth Amendment when evidence shows beyond a reasonable doubt no intoxication |
| Whether §316.193(9) shields the Sheriff from Monell liability | Barnett: statute permits but does not mandate blanket holds; constitutional limits apply | Sheriff: statute allows 8‑hour hold, so policy aligns with state law and is lawful | Court: statute allows options (disjunctive); even if consistent, state law does not eliminate federal constitutional review |
| Standard for continued detention after arrest when new evidence undermines probable cause | Barnett: officers must release once evidence shows beyond a reasonable doubt that probable cause has dissipated | Sheriff: (implied) officers need not continually reassess custody or release on every new piece of information | Court adopts McConney rule: no affirmative duty to re‑investigate, but release is required if officers obtain evidence demonstrating beyond a reasonable doubt that probable cause no longer exists |
| Whether a jury verdict exonerating the individual officer precludes municipal Monell liability | Barnett: municipal policy may independently cause constitutional injury regardless of individual officer liability | Sheriff: individual‑officer verdict shows no constitutional violation, so Monell fails | Court: individual acquittal does not bar Monell; municipal liability can stand even if no individual officer is held liable |
Key Cases Cited
- Monell v. Dep’t of Social Servs., 436 U.S. 658 (1978) (establishes municipal liability under § 1983 for unconstitutional policies or customs)
- Bd. of Cty. Comm’rs v. Brown, 520 U.S. 397 (1997) (municipality must be the moving force behind constitutional injury)
- McConney v. City of Houston, 863 F.2d 1180 (5th Cir. 1989) (endorse rule that officers must release arrestee once evidence shows beyond a reasonable doubt that intoxication is not present)
- Alcocer v. Mills, 906 F.3d 944 (11th Cir. 2018) (continued detention requires probable cause for the continued seizure)
- County of Riverside v. McLaughlin, 500 U.S. 44 (1991) (county policies must comply with Fourth Amendment; statutory or policy schedules that delay probable‑cause determinations can be unconstitutional)
- Gerstein v. Pugh, 420 U.S. 103 (1975) (warrantless arrest permits brief administrative detention but requires prompt probable‑cause review)
- D.C. v. Wesby, 138 S. Ct. 577 (2018) (probable cause is assessed under an objective totality‑of‑circumstances standard)