(a) The court of common pleas shall, on application of the arbitrators, or any one of them, or any party or his attorney, enforce by proper proceedings the attendance and testimony of witnesses and the production of records and may punish for contempt of court, by fine or imprisonment or both, the unexcused failure or refusal to attend and give testimony or produce records required by any subpoena issued. The court may issue to the sheriff of the county in which any hearing is held a warrant requiring him to produce at the hearing any witness who has ignored or failed to comply with any subpoena issued and served upon the witness pursuant to this article and the warrant shall authorize and empower the sheriff to arrest and produce at the hearing the witness. It is the duty of the sheriff to do so, but the failure of a witness to appear may be excused on the same grounds as provided by law in the courts of this State.

(b) All records introduced in evidence which are not identified by their preparer must be certified under oath as a correct statement of the facts contained therein.