Whether a police officer's fear for safety justified a warrantless search

QUESTION PRESENTED When deciding whether a police officer’s fear for his safety justified a warrantless search of a person not suspected of any crime, may courts limit their consideration to a subset of facts that, in isolation, might suggest that the person was dangerous, or must courts consider the totality of the circumstances, including objective safety-protective circumstances that indicate that an officer’s purported fear for his safety was overblown or pretextual? ii