Appeals Court: No stingrays without a warrant, explanation to judge
http://arstechnica.com/tech-policy/2016/03/appeals-court-no-stingrays-without-a-warrant-explanation-to-judge/
Appeals Court: No stingrays without a warrant, explanation to judge
Police also barred from shrouding stingray use in ridiculous NDAs.
On Wednesday, the Maryland Court of Special Appeals published a legal opinion
finding that state police must not only obtain a warrant before deploying a cell-site simulator, but are required to also fully explain to the court what exactly the device does and how it is used.
As Ars has long reported, cell-site simulatorsknown colloquially as stingrays, can be used to determine a mobile phones location by spoofing a cell tower. In some cases, stingrays can intercept calls and text messages. Once deployed, the devices intercept data from a target phone along with information from other phones within the vicinity. At times, police have falsely claimed the use of a confidential informant when they have actually deployed these particularly sweeping and intrusive surveillance tools...
...In an e-mail to Ars, American Civil Liberties Union attorney Nathan Wessler called Wednesday's opinion the "first appellate opinion in the country to fully address the question of whether police must disclose their intent to use a cell site simulator to a judge and obtain a probable cause warrant."
"The courts opinion is a resounding defense of Fourth Amendment rights in the digital age," he continued. "The courts withering rebuke of secret and warrantless use of invasive cell phone tracking technology shows why it is so important for these kinds of privacy invasions to be subjected to judicial review. Other courts will be able to look to this opinion as they address rampant use of cell site simulators by police departments across the country."