Subpoena: The legal document compelling the ISP to provide identifying information, such as your name and address, unless you file (and win) a motion to challenge it. Motion to Quash: A formal request to the court to block the subpoena and prevent your information from being disclosed. Peer-...
A motion to quash is used when you want the judge in your case to say that something filed by the other side against you – sometimes evidence, but more typically a subpoena – is invalid. If the judge grants your motion, whatever was...