An official or other person empowered by another—whether an individual, business, or government agency—to investigate and review specified documents for accuracy and truthfulness.

A court-appointed officer, such as a master or referee, who inspects evidence presented to resolve controverted matters and records statements made by witnesses in the particular proceeding pending before that court.

A government employee in the PATENT AND TRADEMARK OFFICE whose duty it is to scrutinize the application made for a patent by an inventor to determine whether the invention meets the statutory requirements of patentability.

A federal employee of the INTERNAL REVENUE SERVICE who reviews income tax returns for accuracy and...