An amicus curiae is someone who is not a party to a case who assists a court by offering information, expertise, or insight that has a bearing on the issues in the case. The decision on whether to consider an amicus brief lies within the discretion of the court. The phrase amicus curiae is legal Latin.

What does amicus mean in law?

Latin for "friend of the court." Plural is "amici curiae." Frequently, a person or group who is not a party to an action, but has a strong interest in the matter, will petition the court for permission to submit a brief in the action with the intent of influencing the court's decision.

What does it mean to file an amicus brief?

An amicus curiae brief is a persuasive legal document filed by a person or entity in a case, usually while the case is on appeal, in which it is not a party but has an interest in the outcome—typically the rule of law that would be established by the court in its ruling.