Definition - What does Special Master mean?
A special master is a person who is appointed by a court to carry out a specific judicial order, or to oversee aspects of a case or a trial to make sure that everything occurs as the court instructs.
Special masters are typically compensated for their services and have some sort of expertise in a relevant field.
Justipedia explains Special Master
The way that special masters are used can vary significantly from case to case. Special masters are often used in cases where government officials or agencies are accused of violating certain rights.
The primary function of special masters is typically just to provide assistance to judges when and if they need it for the case. Sometimes, special masters are used to administer money or benefits when a particular trial ruling requires that benefits or money need to be administered.