> the telcos can't just say "we don't keep that data."
Not sure what country you are in, though that is untrue in USA. Businesses keep whatever business records they desire, and some required regulatory/personnel data. Even if they have the data a USA attorney can try to argue that the request is unduly burdensome or too broad and ask court to quash subpoena.
Not sure what country you are in, though that is untrue in USA. Businesses keep whatever business records they desire, and some required regulatory/personnel data. Even if they have the data a USA attorney can try to argue that the request is unduly burdensome or too broad and ask court to quash subpoena.