Auditing is a practice wherein an auditor asks questions of another individual, known as a pre-clear, and then acknowledges their answer in a non-judgmental form. Auditing began as an integral part of the pseudoscientific movement
Dianetics and has since, with the addition of the
E-Meter, become a core practice in the belief system
Scientology. Auditing is defined by the
Church of Scientology as "the application of
Dianetics or
Scientology processes and procedures to someone by a trained auditor. One formal definition of auditing is: The action of asking a person a question (which he can understand and answer), getting an answer to that question and acknowledging him for that answer."