What is NOT a requirement for an arrest warrant?

An arrest warrant is a legal document that authorizes law enforcement officers to take a specific individual into custody. For a warrant to be valid, it must meet certain requirements. One of these is that it needs to be signed and dated by the issuing authority, providing legal authentication. Additionally, a probable cause statement is necessary; this outlines the reasons the law enforcement agency believes the individual has committed a crime, thus justifying the arrest. Furthermore, a detailed description of the suspect is important to ensure that the correct person is apprehended.

The requirement regarding a report from a third-party witness is not necessary for the issuance of a warrant. While witness statements can strengthen the case for probable cause, they are not essential components of what constitutes a valid arrest warrant. Therefore, it's the absence of this requirement that correctly identifies it as "NOT a requirement for an arrest warrant."