New Jersey Third Party Summons in a Civil Action (AO 441) is a document used to bring an additional party into an existing civil case for the purpose of obtaining relief from that party. This document is issued by the court and instructs the third party to appear in court and respond to the plaintiff's claims. There are two types of New Jersey Third Party Summons in a Civil Action (AO 441): one for a defendant and one for a third-party defendant. The defendant summons requires the defendant to appear in court to answer the plaintiff's claims, while the third-party defendant summons requires the third party to answer the claims of the defendant. Both summonses require the party to file an answer to the plaintiff's claims and defend themselves.