Allie Bohm writes:
For the past year, the ACLU has been gathering information on local law enforcement agencies’ use of cell phone location tracking. (We’ve written about what we’ve learned here, here, here, here, and here.) In addition to everything we’ve discovered about location tracking itself, we’ve also learned about a number of other techniques law enforcement and the telcos can use when they work together. Sometimes the information came to light because, as with this telecom data retention chart, the information on the other techniques was mingled with the information on cell phone location tracking. Sometimes it was because law enforcement agencies misunderstood our public records requests and sent us everything they had related to telephones.
Read more on the ACLU blog to learn what they uncovered. It’s somewhat chilling to realize the potential of what telecoms can do working with law enforcement and that sometimes, no court oversight is even required.
Thanks to Joe Cadillic who sent in this link.