An amicus curiae

•An amicus curiae literally, means "friend of the court" is someone who is not a party to a case and may or may not have been solicited by a party and who assists a court by offering information, expertise, or insight that has a bearing on the issues in the case; and is typically presented in the form of a brief.
•The decision on whether to consider an amicus brief lies within the discretion of the court.