Cell Site Location Info

Find Your Nearest Cell Tower in Five Minutes or Less: 2021 Edition
In State v. Denham, the WA Supreme Court held there was a sufficient nexus between the defendant’s seized phone records and the suspected criminal activity to support the issuance of a search warrant.
BACKGROUND FACTS
A valuable diamond was stolen from a jewelry store. Within days, the Defendant Mr.  Denham sold that diamond. Police suspected Denham committed the burglary and got a warrant for his cell phone records. Cell site location information included in those phone records placed Denham’s phone near the jewelry store around the time of the burglary.
Mr. Denham was charged and ultimately convicted with second degree burglary and first degree trafficking in stolen property. At Denham’s bench trial, The trial judge cited the
fact that Denham had made phone calls that were routed through the cell tower in
the parking lot of the jewelry store around the time of the burglary. Ultimately, the trial judge found Denham guilty as charged.
Mr Denham appealed his case to the WA Court of Appeals. He challenged the admissibility of the search warrant and the evidence it produced. His argument was that the warrant based on generalizations and did not establish that evidence of wrongdoing would likely be found in his phone records. The WA Court of Appeals agreed with Mr. Denham. The State, however, filed its own appeal. And Mr. Denham’s was heard in the WA Supreme Court.
COURT’S ANALYSIS & CONCLUSIONS
The WA Supreme Court began by discussing the admissibility of cell phone records.
“Our constitutions protect individual privacy against state intrusion,” said Justice Gonzalez, who authored the opinion.  He said that under the U.S. Constitution and WA State Constitution, police must have either the authority of a warrant or a well-established exception to the warrant requirement to lawfully intrude into an individual’s private affairs.
“This constitutional protection extends to cell phone location information held by cell phone companies,” said Justice Gonzalez.  He acknowledged that time-stamped data contained in cell phones provides an intimate window into a person’s life, revealing not only his particular movements, but through them his familial, political, professional, religious, and sexual associations.
Next, Justice Gonzalez described how a search warrant should be issued only if it shows probable cause that the defendant is involved in criminal activity and that evidence of the criminal activity will be found in the place to be searched. “There must be a nexus between criminal activity and the item to be seized and between that item and the place to be searched,” he said. “The warrant must also describe with particularity the place to be searched and the things to be seized.”
With that, Justice Gonzalez reasoned that the search warrant affidavits were proper:
“These affidavits present reasonable grounds to believe that the phones associated with the phone numbers belonged to Denham based on Denham’s own use of the numbers with his probation officers and with various businesses, that Denham had the phones around the time of the burglary because of specific facts suggesting he had the phones days before and after the date in question, that Denham burgled the store, and that Denham trafficked distinctive pieces stolen from the store. They also allege that Denham had both phones at the time of the burglary and used one to arrange the sale of the diamond that was the basis of the trafficking charge.
Taken together, this is sufficient to raise a reasonable inference that evidence of burglary would be found in the cell site location information . . . The fact that there are some generalizations in the inferential chain does not defeat the reasonableness of the inference.” ~Justice Gonzalez, WA Supreme Court
Justice Gonzalez concluded by holding that the search warrant contained sufficient detail to conclude that evidence of a crime would more likely than not be found in the cell site location information in telephone company records of Denham’s cell phones.
Accordingly, the WA Supreme Court reversed the Court of Appeals and affirmed Denham’s convictions.

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