Which of the following is NOT a duty or power of a peace officer?

The role of a peace officer encompasses a variety of responsibilities aimed at maintaining law and order, ensuring public safety, and upholding the law. Among these duties, serving arrest warrants, investigating crimes, and maintaining public order are all integral parts of a peace officer's job.

However, the duty to ensure that a person gets appointed counsel, while crucial within the broader criminal justice system, does not fall under the direct responsibilities of a peace officer. This task is typically associated with the legal representation that individuals have the right to receive, particularly during court proceedings. It involves the judicial system and legal processes rather than the law enforcement duties of a peace officer.

Thus, selecting this option reflects an understanding of the boundaries of a peace officer's scope of work compared to the legal guarantees provided by the judicial system for defendants.