When serving an arrest warrant, which of the following must be confirmed?

When serving an arrest warrant, it is crucial to confirm the signature of a magistrate. This signature is a key component of the warrant, as it authenticates that the warrant has been lawfully issued by a judicial officer. The presence of the magistrate's signature indicates that there has been a legal review of the case and that the warrant meets the necessary legal standards, including probable cause for the arrest.

This confirmation protects the rights of individuals and ensures that law enforcement actions are backed by judicial authority. Without a magistrate's signature, the warrant may be deemed invalid, which could lead to issues related to the legality of the arrest and any subsequent actions taken by law enforcement.