https://www.techdirt.com/articles/20181027/12303040923/eff-sues-california-law-enforcement-agency-refusing-to-hand-over-stingray-documents.shtml

The EFF is taking the San Bernardino County Sheriff's Department to court. The dispute centers on Stingray warrants possessed by the agency. The Sheriff's Department likely holds more of these records than any other agency in the state. According to the Desert Sun's investigation -- based on state law-mandated reporting on electronic searches, San Bernardino residents were 20 times more likely to be subjected to an electronic search than residents elsewhere in state.

Even more troubling, a lot of these searches -- including Stingray deployments -- were performed by the department when it had no idea who it was looking for or whose devices it was searching.