article_snippet.sent: The Baltimore Police Department has used secret cellphone surveillance equipment 4,300 times since 2007 - amid claims The Baltimore Police Department is ordered to withhold such evidence from prosecutors, a court heard.
article_snippet.sent: Baltimore Police used cellphone surveillance equipment 4,300 times since 2007, a court heard.
article_snippet.sent: That data is then transmitted to the police, allowing the police to locate a phone without the user even making a call or sending a text message. '
article_snippet.sent: Cabreja   said no content, such as text messages or phone conversations, is captured in the process.