Enforcement of attendance and testimony

31-845. Enforcement of attendance and testimony. A witness is bound to attend, when served, and to answer all questions which he would be bound to answer in the same case before a court of justice. Obedience to the subpoena, or to an order to attend, or to testify, may be enforced by the board, and for that purpose the board has all the powers conferred by, and the witness is subject to all the provisions of, the Code of Civil Procedure.