While in Riley, the Court held that police must obtain a warrant before searching cell phone contents after making an arrest, in Carpenter, the government is relying on the "third-party doctrine"—the idea that Fourth Amendment protections do not extend to any information that is voluntarily shared with another party.
According to accounts from fellow activists, the women were mostly arrested at their homes, with police sometimes arriving in the middle of the night and searching cell phones and computers.
The searching cells were optimized to increase the calculation speed.
The Americans quickly shot him and started searching cells for weapons, rounding up 11 Iraqi police officers.
They were also careful to note that despite having video surveillance images of the strip searching cells, "there is currently no definitive evidence available that detainees were videotaped undergoing strip searches in the Eastern Avenue detention centre".
Until now, the courts have generally allowed arresting officers to seize and search cell phones, along with weapons, wallets, and other personal effects, on the grounds that these seizures were necessary to protect the officers, prevent the destruction of evidence, and solve crimes.
The justices on Monday declined to review a federal court's decision from earlier this year that police do not need a warrant to seize and search cell phone records that reveal a person's location.
"Privacy comes at a cost," Roberts said, adding that if police want to search cell phones, they simply must "get a warrant".
Gorsuch's first chance to tackle the Fourth Amendment as a Supreme Court justice arrived in November with a case that will decide whether police need a warrant to search cell phones' historical location data, Carpenter v. United States.
There's no clear prescription yet from the Supreme Court on whether and to what extent police can search cell phones at the time of arrest, but justices have already started debating the merits of allowing warrantless searches based on the cause of an arrest or else allowing for some aspects of a phone to be searched and not others.
In large-scale search actions, hundreds of police and prison officials have searched cells in three big prisons notorious for violence, including one at Fresnes, not far from Disneyland Paris, in Marseille and in Clairvaux, in southern France.
