What is the primary function of a legal 'brief'?

The primary function of a legal 'brief' is to argue law and facts in support of a case. A brief serves as a written argument submitted to a court that outlines the legal reasoning behind a party's position, accompanied by relevant facts and legal precedents. It is a critical document in legal proceedings because it helps the court understand the issues at stake and the rationale for the party's claims, thereby guiding the judge or jury in their decision-making process.

The structure of a brief typically includes sections that present the case's background, the legal issues, the arguments supported by statutes and precedents, and the conclusion. This organized presentation allows legal practitioners to effectively communicate complex legal concepts and persuade the court of their perspective on the case.