decide

Definition from Nolo’s Plain-English Law Dictionary

To reach a determination of who is right and wrong in a legal matter, after looking at the facts and the law. Judges, hearing officers, magistrates, and arbitrators all may decide the outcome of cases that come before them.By contrast, mediators help disputing parties reach a mutually agreeable resolution, but do not decide matters themselves.

Definition provided by Nolo’s Plain-English Law Dictionary.