Which requirement is NOT necessary for a valid warrant?

For a warrant to be deemed valid, it must meet several specific requirements outlined in the Code of Criminal Procedure. A fundamental aspect of a warrant is that it needs to be signed by a magistrate, ensuring that a neutral party has reviewed the request and found sufficient probable cause. Additionally, the warrant must specify the offense committed, which outlines the legal basis for the search or the arrest. Including the name or description of the accused serves to clearly identify the individual involved in the warrant execution, further ensuring that the rights of those engaged in legal processes are respected.

Conversely, while having a credible witness may be relevant in establishing the credibility of the information supporting the warrant's issuance, it is not a requisite for the warrant itself. Therefore, the requirement regarding the identification of a credible witness is not necessary for a warrant to be considered valid within the framework of the Code of Criminal Procedure.