briefs filed by parties not involved in a case

Briefs filed by parties not directly involved in a case are called amicus curiae, or "friend of the court" briefs. These are submitted by individuals or organizations that have a strong interest in the case's outcome but are not a party to it. Their purpose is to provide additional perspectives, expertise, or arguments to help the court understand the broader implications of a decision. While they do not have a direct stake, their insights can influence the court’s ruling by highlighting relevant legal, social, or policy considerations.