Cellphone companies is one more layer in their trust circle. It's easier to just bypass them and collect the data yourself. Warrants only really became a requir

Cellphone companies is one more layer in their trust circle. It's easier to just bypass them and collect the data yourself. Warrants only really became a requirement in 2015. And police were misleading judges on Stingray usage to hide the tech. https://arstechnica.com/tech-policy/2016/03/appeals-court-no-stingrays-without-a-warrant-explanation-to-judge/ https://arstechnica.com/tech-policy/2016/03/appeals-court-no...