Powers and duties of the claims commissioner

The claims commissioner shall have full authority to control the procedure of a hearing; to admit or exclude testimony or other evidence; and to rule upon all motions and objections. He shall make full inquiry into all facts at issue and shall obtain a full and complete record of all facts necessary for a fair determination of the issues. The claims commissioner may call and examine witnesses, direct the production of papers and documents and introduce the same into the record of the proceedings.