What key components are required for a warrant of arrest?

A warrant of arrest is a formal legal document that is crucial for law enforcement officers to carry out arrests within the bounds of the law. The key components required for this warrant include a written order that details the substance of the complaint against the individual to be arrested. This written order must be signed by a magistrate, which provides the necessary legal authority for the arrest.

The requirement for a written order ensures that there is a clear, documented basis for the arrest, which can be important for legal proceedings that may follow. The substance of the complaint is essential as it outlines the reasons for the arrest, ensuring that law enforcement is acting on probable cause rather than mere suspicion. The signature of a magistrate confirms that an independent review has taken place, adding a layer of judicial oversight to the process, which is a fundamental principle in protecting individual rights under the law.

In contrast, other suggested options lack the necessary legal framework and safeguards that a proper warrant requires. For example, reliance on verbal agreements or police discretion does not provide the written and judicial review that is essential for ensuring lawful arrests. Additionally, an email confirmation does not have the legal standing of a formally signed document by a magistrate. Hence, the correct answer emphasizes the formalities that uphold