The administrative steward shall be the principal advisor to the commission on harness racing activities throughout the State. The administrative steward shall exercise administrative supervision over all track stewards, State racing officials and association racing officials listed in paragraph (1) of subdivision (a), and subdivision (b), of section 4105.1 of this Part. The administrative steward shall be responsible for keeping the track stewards, State racing officials and association racing officials informed of commission policies and procedures. Under direction of the commission, the administrative steward shall have the authority to conduct inquiries and in connection therewith to issue subpoenas to compel the attendance of witnesses, and the production of all relevant and material reports, books, papers, documents correspondence and other evidence; and in connection therewith the administrative steward shall have the power to administer oaths and examine witnesses and shall submit a report of all proceedings thereon. The commission may assign the administrative steward to act in the place of a track steward or State racing official at any meeting for a specified period. In an emergency, created by the absence or disability of a track steward or State racing official, the administrative steward shall act in his or her place or appoint a substitute for the duration of the emergency. The administrative steward shall carry out any special duty assigned by the commission.