Judge Kendra Ausby ruled last week that the police should not have used a stingray to track Andrews without a search warrant, and she said prosecutors could not use any of the evidence found at the time of his arrest.
Baltimore police used a stingray to locate Kerron Andrews after he was charged with attempted murder in 2014. Prosecutors did not reveal that surveillance until a year later, and a judge ruled that using the phone tracker was an unconstitutional search. Some states require officers to get a search warrant, in part because the technology is so invasive. The Justice Department is considering whether to impose a similar rule on its agents.
While no clear decision has been made on Stingray technology, the USA Today article makes it clear that police are careful not to disclose the are using it. In other words, they want to get away with it for as long as they can.
