Judicial adjuncts can take on several types of roles. Often—but not exclusively—these roles arise in multi-district litigation (MDL) cases, class actions, or other complex or multi-party litigation. Judicial adjuncts appointed pursuant to Rule 53 of the Federal Rules of Civil Procedure are referred to as “masters.” Other adjuncts can have titles that reflect the nature of their role, such as monitor, mediator, facilitator, or arbitrator. Sometimes one adjunct will play multiple roles throughout the lifetime of a complex case. Generally, special masters and other judicial adjuncts serve in one or more of the following roles.
More information about the various roles and types of masters can be found here.