What is the main purpose of a summons?

The main purpose of a summons is to serve official notice upon a defendant, informing them that a legal action or proceeding has been initiated against them. This document typically outlines the nature of the case and provides details regarding when and where the defendant must appear in court. By issuing a summons, the court ensures that the defendant is properly notified of the legal claims being made, which is a fundamental requirement in legal proceedings to uphold fairness and due process.

The other options do not accurately describe the primary function of a summons. While requesting evidence is an important step in legal proceedings, it is not the primary role of a summons. The finalization of a court decision occurs much later in the legal process and is not related to the issuance of a summons. Testifying in court refers to the role of witnesses or parties involved in a case, which again is distinct from the function of a summons.