The Fourth Amendment provides that “[t]he right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated.” U.S. Const., amend. IV. The primary purpose of the Fourth Amendment is “ ‘to prevent arbitrary and oppressive interference by enforcement officials with the privacy and personal security of individuals.’ ” I.N.S. v. Delgado, 466 U.S. 210, 215, 104 S.Ct. 1758, 80 L.Ed.2d 247 (1984) (quoting United States v. Martinez-Fuerte, 428 U.S. 543, 554, 96 S.Ct. 3074, 49 L.Ed.2d 1116 (1976)).
Not every interaction between a police officer and a citizen constitutes a seizure triggering Fourth Amendment protections. Bostick, 501 U.S. at 434, 111 S.Ct. 2382; Cardoza, 129 F.3d at 14; Young, 105 F.3d at 5. While per se rules are inappropriate in determining when a seizure occurs for Fourth Amendment purposes, United States v. Drayton, 536 U.S. 194, 201, 122 S.Ct. 2105, 153 L.Ed.2d 242 (2002) (citing Bostick, 501 U.S. at 439, 111 S.Ct. 2382), we have observed that encounters “between law enforcement officials and citizens generally fall[ ] within three tiers of Fourth Amendment analysis, depending on the level of police intrusion into a person’s privacy.” Young, 105 F.3d at 5. Because there are no bright-line distinctions between the tiers, we look to the totality of the circumstances to determine where a police encounter falls. Drayton, 536 U.S. at 207, 122 S.Ct. 2105; Michigan v. Chesternut, 486 U.S. 567, 572, 108 S.Ct. 1975, 100 L.Ed.2d 565 (1988); United States v. Smith, 423 F.3d 25, 29-30 (1st Cir.2005); Cardoza, 129 F.3d at 15. See also Bostick, 501 U.S. at 439-40, 111 S.Ct. 2382 (rejecting per se rule for seizure in favor of totality inquiry).
The lowest tier, which does not implicate the Fourth Amendment, involves minimally intrusive interactions such as when police officers approach individuals on the street or in public places to ask questions. Young, 105 F.3d at 5-6; Bostick, 501 U.S. at 434, 111 S.Ct. 2382. See Drayton, 536 U.S. at 201, 122 S.Ct. 2105 (observing that law enforcement agents may question and ask a citizen for identification even when they have no basis to suspect the individual so long as they “do not induce cooperation by coercive means”). If the encounter amounts to more than a minimally intrusive interaction, a seizure occurs, either a de facto arrest requiring probable cause or an investigative (or Terry) stop necessitating reasonable suspicion. Young, 105 F.3d at 6.
The Supreme Court has adopted the standard set forth by Justice Stewart’s plurality opinion in
United States v. Mendenhall, 446 U.S. 544, 554, 100 S.Ct. 1870, 64 L.Ed.2d 497 (1980), that “a person has been ‘seized’ within the meaning of the Fourth Amendment only if, in view of all the circumstances surrounding the incident, a reasonable person would have believed that he was not free to leave.”
2 See Drayton, 536 U.S. at 202, 122 S.Ct. 2105;
California v. Hodari D., 499 U.S. 621, 627-28, 111 S.Ct. 1547, 113 L.Ed.2d 690 (1991) (compiling cases). To constitute seizure, this Circuit requires one’s liberty be restrained by either physical force or an assertion of authority.
Id. at 626, 111 S.Ct. 1547;
United States v. Sealey, 30 F.3d 7, 9 (1st Cir.1994);
see Smith, 423 F.3d at 28 (finding seizure can occur without physical restraint if compliance is coerced and not voluntary).
2
The Court has explained the reasonable person test presumes an innocent person. Bostick, 501 U.S. at 438, 111 S.Ct. 2382; Smith, 423 F.3d at 31, n. 5.