Any testimony given by a witness compelled to appear before the Commission on Judicial Fitness and Disability or the masters appointed pursuant to ORS 1.420 or 1.425 shall not be used against the witness in any criminal action or proceeding, nor shall any criminal action or proceeding be brought against such witness on account of any testimony so given by the witness, except for perjury or false swearing committed before the commission or the masters.
ORS 1.450