Texas Police Invested Millions in a Shadowy Phone-Tracking Software. They Won’t Say How They’ve Used It.

Texas police have invested millions in Tangles, a controversial phone-tracking software, but refuse to disclose how they have used it. One sheriff claims it helps develop leads, while civil liberties experts argue it violates constitutional rights. Texas agencies have spent at least $8 million on Tangles, yet they provide no evidence of its use in criminal investigations or arrests.