25 N.Y.3d 130
N.Y.2015Background
- At 12:15 a.m. on Sept. 27, 2009, an officer stopped defendant’s car after observing it drive past a stop sign at the edge of a supermarket parking lot without stopping.
- The officer smelled alcohol, administered field sobriety tests and a breath test that showed an illegal BAC; defendant was arrested for DWI and charged with failing to stop at a stop sign (VTL §1172(a)).
- The stop sign was later shown not to have been properly registered under local law as required by VTL §1100(b); the People conceded the sign was unregistered and that defendant could not be prosecuted for a stop-sign violation.
- Village Court suppressed the evidence and dismissed charges; County Court affirmed, holding an officer’s good faith about the law does not cure the illegality of the sign.
- The Court of Appeals reversed: it held that an officer’s objectively reasonable mistake of law can supply probable cause for a traffic stop under the Fourth Amendment and NY Const. art I, §12, so the suppression was improper.
Issues
| Issue | People’s Argument | Defendant’s Argument | Held |
|---|---|---|---|
| Whether an objectively reasonable mistake of law by an officer can justify a traffic stop under the Fourth Amendment and NY Const. art I, §12 | Officer’s reasonable but mistaken belief that a traffic violation occurred supplies probable cause for the stop | A mistake of law—even if reasonable—can never justify a stop; evidence must be suppressed | Yes; a reasonable mistake of law may justify a stop when objectively reasonable (court reverses suppression) |
| Whether NY law requires a different rule than federal (i.e., forbids mistakes of law) | Federal precedent (Heien) and prior NY decisions allow objectively reasonable mistakes; no NY-specific reason to depart | NY Constitution and prior NY decisions historically treated mistakes of law as insufficient; NY should offer greater protection | NY Constitution does not require a different rule here; no departure from federal approach warranted |
| Whether People v Estrella and prior NY cases preclude treating mistakes of law like mistakes of fact | Estrella supports assessing objective reasonableness without distinguishing law vs. fact | Estrella was limited and should not be read to eliminate the law/fact distinction for NY officers enforcing NY law | Estrella consistent with treating mistakes alike for stop reasonableness; not limited to nonresident-law issues |
| Whether evidence seized after the stop must be suppressed under Bigelow/good-faith concerns | If the officer’s mistake is objectively reasonable, evidence need not be suppressed | Admission undermines Bigelow’s exclusionary-rule deterrent and incentives for officers to learn the law | Objective-reasonableness requirement preserves deterrence; evidence admissible when mistake is reasonable |
Key Cases Cited
- Heien v. North Carolina, 574 U.S. 54 (2014) (Fourth Amendment permits seizures based on objectively reasonable mistakes of law)
- People v. Estrella, 10 N.Y.3d 945 (2008) (officer’s reasonable belief about a vehicle equipment violation upheld despite interstate legal exception)
- People v. Robinson, 97 N.Y.2d 341 (2001) (traffic stop is a seizure; probable cause required under NY Const. art I, §12)
- People v. Bigelow, 66 N.Y.2d 417 (1985) (probable cause standard and rejection of a good-faith exception to the exclusionary rule)
- People v. Gonzalez, 88 N.Y.2d 289 (1996) (apparent-authority consent must rest on reasonably held factual, not legal, interpretations)
- Whren v. United States, 517 U.S. 806 (1996) (traffic stop permissible when officer has probable cause to believe a traffic violation occurred)