A more thorough explanation:

An act of court refers to a legal action or decision made by a court of law. It can also refer to a written record of the proceedings in a lawsuit or a rule made by a sheriff to regulate proceedings within their jurisdiction.

• When the judge issued a ruling in the case, it became an act of court.
• In Scotland, a written record of the proceedings in a lawsuit is called an act of court.
• A sheriff in Scotland may issue an act of court to regulate how proceedings are conducted within their jurisdiction.

These examples illustrate how an act of court can refer to a legal decision or action made by a court, as well as a written record or rule made by a sheriff to regulate proceedings within their jurisdiction.