Massachusetts
How Carpenter v. United States applies in Massachusetts: state-specific rules, key cases, and bar exam notes for Criminal Procedure (Fourth Amendment).
Massachusetts courts have reaffirmed their commitment to robust Fourth Amendment protections, aligning broadly with the principles outlined in Carpenter v. United States. They emphasize the need for a warrant based on probable cause for the collection of digital evidence, reflecting a heightened judicial scrutiny over privacy interests.
In Massachusetts, warrantless searches of cell phone location data are presumptively unreasonable unless officers have obtained a warrant showing probable cause, per the expectations set forth in Carpenter.
Held that warrantless searching of cell phone contents violates the Fourth Amendment, reinforcing privacy protections.
Declared that GPS tracking without a warrant constitutes an unreasonable search under Massachusetts law.
Found that real-time location tracking of a cell phone requires a warrant, echoing the Carpenter principles.
While the federal standard established in Carpenter requires warrant approval to access historical cell site data, Massachusetts law similarly mandates a warrant for even broader categories of digital information. Massachusetts courts often interpret privacy rights under the state constitution more expansively than federal courts.
Carpenter's principles on digital privacy rights frequently appear in bar exam questions related to search and seizure, highlighting the necessity for warrants under Massachusetts law.