A special master or master in chancery is an individual appointed by the court to assist with some part of a lawsuit, such as discovery—depositions, written questions, and production of documents—and to make recommendations to the judge on how to resolve related disputes. Courts have held that discovery questions that require extensive examination of highly technical and complex documents by a person having both a technical and a legal background may constitute an exceptional condition sufficient to justify the appointment of a master to supervise such discovery.

In Tennessee, a special master, also known as a master in chancery, can be appointed by the court to assist with complex aspects of a lawsuit, particularly during the discovery phase. This includes overseeing depositions, managing written questions, and handling the production of documents. The appointment of a special master is typically justified under exceptional conditions, such as when the discovery process involves the examination of highly technical and complex documents that require expertise from someone with both technical knowledge and a legal background. Tennessee courts may appoint a special master when they determine that the complexity of the case warrants such assistance to ensure efficient and effective resolution of discovery-related disputes. The use of a special master is governed by the Tennessee Rules of Civil Procedure, and their recommendations are subject to review by the judge overseeing the case.