Immunity from prosecution may be granted for cooperative applicants but is withdrawable for nonpayment, noncompliance or concealment. The Settlement Commission may grant immunity from prosecution and wholly or partly waive penalties to applicants who cooperate and make full and true disclosure, subject to conditions and except where prosecution began before application receipt. Immunity is withdrawn for failure to pay sums or comply with conditions or for concealment or false evidence, after which prosecution and penalties apply as if no immunity had been granted; the same powers will be exercised by the Interim Board with mutatis mutandis application.