§ 4.8 Search Following a Custodial Arrest
A. Justification for the search incident arrest exception to warrant requirement. Protect officer safety and
prevent destruction and concealment of evidence.
B. Grounds for the search. Grounds for the search arise whenever an officer makes a lawful custodial
arrest for any offense, including a traffic violation.
B. Search boundaries. The purposes of the search are to prevent the arrestee from gaining access to a
weapon or destroying evidence. Search authority, accordingly, extends only to the arrestee’s person
and containers within arm’s reach, measured as of the time of the search.
1. Searches of the arrested individual’s person. Police have broad authority to search the arrested
individual’s person. Their authority extends to articles intimately associated with the arrested
▪ United States v. Robinson (Part II). Police may search the arrested individual’s person
whenever they make a lawful custodial lawful custodial arrest for any offense, including
driving without a license, which was the offense of arrest in this case. Probable cause to believe
▪ Riley v. California (Part II). Authority to search an arrested individual’s person incident to
arrest does not extend to his or her cell phone. The Supreme Court gave two reasons: (1) Cell
2. Searches of articles not associated with the arrested individual person. Articles not associated
with the arrested individual person that are located within the area under the arrested person’s
control, such as backpacks, suitcases, and duffle bags, may be searched only if the arrestee is
unsecured and within reaching distance of them when they are searched. After police have secured
the arrestee so that he or she no longer has access to them, a search warrant will be necessary to
search them.
Caveat: This area of the law is not as certain as this outline makes it out to be. The Supreme Court
has not yet decided whether Arizona v. Gant applies outside the vehicle context. The better
reasoned cases believe that it does, and this outline is prepared on that assumption.