CrimProf Blog

Editor: Kevin Cole
Univ. of San Diego School of Law

Wednesday, September 27, 2023

Logan on The Harms of Heien

Wayne A. Logan (Florida State University - College of Law) has posted The Harms of Heien: Pulling Back the Curtain on the Court's Search and Seizure Doctrine (77 Vanderbilt Law Review, Forthcoming) on SSRN. Here is the abstract:
In Heien v. North Carolina, 574 U.S. 54 (2014), the Supreme Court held that police can seize individuals on the basis of reasonable mistake of law. In an opinion authored by Chief Justice Roberts, the eight-justice majority held that the Fourth Amendment’s prohibition of “unreasonable” seizures does not bar legally mistaken seizures because “[t]o be reasonable is not to be perfect.” Concurring, Justice Kagan, joined by Justice Ginsburg, emphasized that judicial condonation of police mistakes of law should be “exceedingly rare.” In a solo dissent, Justice Sotomayor fairly “wonder[ed] why an innocent citizen should be made to shoulder the burden of being seized whenever the law may be susceptible to an interpretive question.”

This article provides the first empirical study of state and lower federal court cases applying Heien (from when it was decided in mid-December 2014 through mid-June 2023).
Of the over 270 cases examined, a large majority (over two-thirds) deemed unlawful police seizures reasonable, belying Justice Kagan’s expectation that such cases would be “exceedingly rare.” Moreover, the study makes clear that Heien is being applied well beyond the context in which it arose--an auto stop for a suspected equipment violation. Courts regularly rely on Heien to justify unlawful stops for a broad array of more serious offenses, as well as unlawful arrests, far more significant intrusions on physical liberty (allowing officers to search). Courts also forgive police mistakes of law regarding Fourth Amendment doctrine, such as the contours of consent and the permissibility of warrantless blood draws. Finally, the study demonstrates that courts lack any consistent analytic rubric for assessing whether a police mistake of law is reasonable, including the critically important foundational question of who (judges, laypersons, or police) should serve as the benchmark “audience” when assessing whether a mistake of law is reasonable.

In addition to exploring the study’s results, the article uses Heien to assess the adverse real-world consequences of what would appear an uncontroversial decision by a near-unanimous Court. Heien not only augmented the already troublingly expansive discretionary authority of police to seize individuals without warrants; it also significantly undermined the rule of law and undercut separation of powers. By condoning police mistakes of law, the Court at once weaponized statutory ambiguity for use against citizens and encouraged rational ignorance among police, lessening their incentive to learn the scope of the laws they enforce.

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