In legal contexts, what is the primary purpose of a subpoena?

The primary purpose of a subpoena is to compel someone to appear in court. This legal document acts as an official order requiring an individual to testify as a witness or produce evidence in a legal proceeding. Subpoenas ensure that the court has access to necessary information or testimony that may be relevant to the case at hand.

This process is crucial for maintaining the integrity of the judicial system, as it allows for the collection of pertinent facts and testimonies, thereby aiding in the pursuit of justice. The ability to summon witnesses or demand documents is foundational in both civil and criminal cases, ensuring that all relevant information is presented before the court.

The other options do not fit the specific role of a subpoena. Settling a dispute out of court does not involve direct court proceedings and typically occurs through negotiation or mediation. Issuing a final judgment pertains to the court's authority to conclude a case and render a decision, which is separate from the function of a subpoena. Modifying existing laws is a legislative process and does not relate to the judicial mechanism of compelling testimony or the production of evidence.