No statement made by a person in the
course of giving evidence before the Commission shall subject him to, or be used against him in, any
civil or criminal proceeding except a prosecution for giving false evidence by such statement:
Provided that the statement—
(a) is made in reply to a question which he is required by the Commission to answer, or
(b) is relevant to the subject matter of the inquiry
Provided that the statement—
(a) is made in reply to a question which he is required by the Commission to answer, or
(b) is relevant to the subject matter of the inquiry