What must always be made known to the accused at the time of making an arrest?

At the time of making an arrest, it is crucial that the arresting officer informs the accused of the arrest authority. This means the officer must communicate whether the arrest is made under a warrant or without one. This requirement ensures that the individual being arrested understands the legal basis for their arrest, which is critical for maintaining transparency and upholding their rights under the law. Knowing the arrest authority allows the accused to understand why they are being detained and can inform them of any applicable legal protections they may have.

The other options, while they may be important in certain contexts, are not universally required at the moment of arrest as the arrest authority is. Knowing the officer's name, the type of warrant, or the specific reason for the arrest might enhance the accused's understanding of their situation, but the primary legal requirement focuses on the basis of the authority under which the arrest is being made. This forms a fundamental aspect of the lawful arrest process and the rights of the individual involved.