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Do the police need a warrant to search a cell phone?

Matthew Keenan
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Matt Keenan is a criminal and school law attorney with over 20 years of experience who has successfully represented clients all over the Chicago area. His practice includes DUI, felony, criminal, misdemeanor, homicide, internet crime, retail theft, traffic offenses, cyberstalking, drug or narcotics crimes such as drug possession or drug dealing, weapons violations, domestic battery and juvenile crime. He also represents families involving school cases. He is a member of the ACLU, Illinois State Bar Association. Full Bio

Q:Do the police need a warrant to search a cell phone?
A:Police generally do not need a warrant to search a suspect as part of a lawful arrest. Such a search may be limited to the person of the arrestee and the area immediately within their control. However, most of us carry cellphones on our person. Can the police look at all the personal information stored in our phone? In a landmark decision, the U.S. Supreme Court has said the answer is no. See Riley v California. While officers may search the arrestee to prevent destruction of evidence or protect the officer from harm, searching a cell phone serves neither purpose. Instead, the intrusion to a defendant’s privacy far outweighs those concerns. And an officer can protect the phone’s contents from being remotely erased by following certain procedures. According to the court, cell phones differ from other physical objects because of their immense storage capacity. Cell phones could just as easily be called cameras, video players, rolodexes, calendars, tape recorders, libraries, diaries, albums, televisions, maps or newspapers, the Court wrote. In this digital age, the person who doesn’t carry a cache of sensitive personal information with them is the exception.

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