What should always be provided to the defendant when serving an arrest warrant?

Providing a copy of the arrest warrant to the defendant is a fundamental part of due process in the criminal justice system. This ensures that the individual is fully aware of the legal basis for their arrest and can understand the charges against them. It is a critical component of maintaining transparency and fairness in legal proceedings.

When a law enforcement officer executes an arrest warrant, presenting the warrant allows the defendant to see the specifics of what they are being charged with and the authority under which they are being arrested. This practice helps establish credibility and legality in the enforcement of the warrant, and it empowers the defendant to prepare for their legal defense.

The other options mentioned do not serve as an appropriate substitute for this necessity. While a warning of the charges may be useful, it does not fulfill the legal requirement to provide a copy of the warrant itself, which contains essential information such as the nature of the offense and details regarding the charges. An apology or a witness statement also lacks the legal significance that a warrant holds in this context.