Commonwealth v. Beauford

How later courts describe this case

• holding unconstitutional non-participant monitoring of private communications via “pen register” devices
• regarding suppression of information obtained from pen registers or dialed number recorders
• under article I, section 8, installation and use of pen registers and dialed number recorders requires a judicial order based upon probable cause
• privacy protections extend to the number dialed when making outgoing calls
• “[I]t cannot be doubted that this state has the constitutional power to guard individual rights, including the right to be free from unreasonable searches and seizures, more zealously than the federal government does under the United States Constitution.”