Political Dictionary

Amicus Brief

An amicus brief is a filing by a nonparty offering information or arguments to a court.

Definition

An amicus curiae, or friend-of-the-court, brief helps judges understand broader legal, technical, or policy implications.

Why It Matters

It gives affected groups and experts a voice in important litigation.

How It Works

A person or organization seeks permission or qualifies under court rules to file a brief.

History

Amicus practice has long existed in appellate courts and is especially common in major Supreme Court cases.

Example

A civil rights group may submit historical evidence in a constitutional case.

Common Misconceptions

  • Amici become parties to the lawsuit.
  • Courts must follow their recommendations.
  • Any filing labeled amicus is automatically accepted.