Kerr rejects Carpenter's privacy holding but says a warrant rule largely follows if that holding is accepted

Orin KerrLaw professor and Fourth Amendment scholar

Kerr rejects Carpenter's privacy holding but says a warrant rule largely follows if that holding is accepted.

“I think Carpenter’s search holding is wrong. In my view, users don’t have Fourth Amendment rights in their historical cell-site records. But if you accept that erroneous holding as correct, and you then need to figure out what the reasonableness standard is for compelling access, I think something like the majority’s rule, in which the target is still ultimately protected by the same protections that would apply if the information were locally stored, is probably right.”

Analysis

Open source (opens in a new tab)Does Carpenter Revolutionize the Law of Subpoenas?I think Carpenter’s search holding is wrong.
AI-assisted collage of separate official portraits of John Roberts on the left and Anthony Kennedy on the right.
Credit: Steve Petteway / Collection of the Supreme Court of the United States; Collection of the Supreme Court of the United States. Composite: Dispute Index.

Where this statement fits

Carpenter: Roberts and Kennedy split over police access to cellphone location records

In June 2018, the Supreme Court ruled five to four that obtaining Timothy Carpenter's historical cellphone location records was a search and generally required a warrant. Chief Justice John Roberts stressed the reach of location surveillance. Justice Anthony Kennedy dissented, arguing that the government obtained the carriers' business records rather than searching Carpenter's property.

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Source and context

Analysis

Does Carpenter Revolutionize the Law of Subpoenas? (opens in a new tab)I think Carpenter’s search holding is wrong.

About this source

Kerr analyzes whether Carpenter changes the law governing subpoenas.

Archived copy (opens in a new tab)

Before the quotation

Kerr examines Carpenter's consequences for subpoenas.

After the quotation

He concludes that the subpoena holding largely follows from the search holding rather than creating a separate doctrinal break.

How this statement is classified

Mixed or conditional

The label describes this statement's response within the context above.

Why this label?

Relative to warrantless acquisition of historical location records, Kerr rejects recognizing a Fourth Amendment interest but conditionally supports the majority's protection once that premise is accepted.

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Kerr rejects Carpenter's privacy holding but says a warrant rule largely follows if that holding is accepted
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https://disputeindex.com/events/6631-kerr-rejects-carpenter-s-privacy-holding-but-says

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The Dispute Index. "Kerr rejects Carpenter's privacy holding but says a warrant rule largely follows if that holding is accepted". First published: 2026-10-24. Last updated: 2026-10-24. https://disputeindex.com/events/6631-kerr-rejects-carpenter-s-privacy-holding-but-says