What is a primary role of the judge in the legal system?

The primary role of a judge in the legal system is to preside over trials and make legal rulings. This includes ensuring that the trial proceeds fairly and according to the law, managing the courtroom and the conduct of participants, and making decisions on the admissibility of evidence, among other responsibilities. The judge serves as an impartial arbiter who interprets legal principles and ensures that justice is served within the established legal framework.

In contrast, the other options focus on specific functions that do not encompass the broad responsibilities of a judge. Representing the prosecution or providing a defense for the accused would conflict with the judge's impartial role. Issuing arrest warrants, while a function that may involve a judge, is only a small part of their overall duties in the justice system. Thus, presiding at trials and making legal rulings accurately captures the essence of a judge's primary responsibilities.