United States v. Baez
744 F.3d 30
1st Cir.2014Background
- ATF installed a warrantless GPS device on Jose Baez’s 1989 Chevrolet Caprice on Aug. 27, 2009, and monitored it for 347 days; monitoring alerted agents shortly before an August 9, 2010 arson that led to Baez’s arrest.
- Investigation tying Baez to earlier April and July 2009 fires relied on surveillance footage identifying a Caprice with distinguishing features; RMV records narrowed possible vehicles and Baez was the only owner on the list who was also a Back Bay Dental patient.
- Agents used a virtual perimeter that sent text alerts when the Caprice left the perimeter; agents reviewed logs every day or two and conducted periodic physical surveillance.
- Searches after arrest produced materials linked to multiple arsons; Baez was indicted and moved to suppress evidence obtained via the GPS monitoring.
- The district court withheld decision pending the Supreme Court’s decision in Jones (GPS tracking is a Fourth Amendment search) and later denied suppression under the good-faith exception; the First Circuit affirmed.
Issues
| Issue | Baez’s Argument | Government’s Argument | Held |
|---|---|---|---|
| Whether the exclusionary rule should bar evidence from pre-Jones warrantless GPS monitoring | The nearly year-long, warrantless GPS monitoring was an abusive “dragnet” and not authorized by pre-Jones precedent, so suppression is required | At the time of the tracking, binding precedent (Knotts and Moore) made the conduct objectively reasonable; suppression would not deter unlawful police conduct | The good-faith exception applies; suppression denied |
| Whether the duration and scope of monitoring rendered Knotts inapplicable (i.e., constituted a reserved “dragnet” case) | Prolonged, indefinite monitoring transforms lawful surveillance into an unconstitutional dragnet | Sparks and Knotts supplied no concrete temporal limit; monitoring here was targeted and supported by investigative facts, not indiscriminate mass surveillance | Duration alone did not make Knotts inapplicable given targeted investigation; not a prohibited dragnet |
Key Cases Cited
- United States v. Jones, 565 U.S. 400 (2012) (installation and use of GPS on vehicle is a Fourth Amendment search)
- United States v. Knotts, 460 U.S. 276 (1983) (no reasonable expectation of privacy in movements on public roads; reserved dragnet question)
- Davis v. United States, 564 U.S. 229 (2011) (exclusionary rule inapplicable where officers reasonably relied on binding appellate precedent)
- United States v. Sparks, 711 F.3d 58 (1st Cir. 2013) (applied good-faith exception to pre-Jones warrantless GPS monitoring)
- United States v. Moore, 562 F.2d 106 (1st Cir. 1977) (addressed trespass theory for attaching tracking devices; treated installation as immaterial for Fourth Amendment purposes)