When you receive a Requests for Admission, the other side is asking you to admit a list of statements are true or that documents are genuine. This is so they can establish these things before the trial so they won’t have to prove them at trial. This allows the trial to focus on issues that the parties disagree on.
Discovery means you send the other side questions and requests for information or items (like documents) in writing. The other side must respond to your question or request in writing.
If there is a witness you need to bring evidence to a trial or hearing, you may use a subpoena to order that person to bring the evidence to court.
If there is a witness you need to appear at a deposition (taking evidence outside court) and bring evidence, you may use a subpoena to order that person to do so.
