Kan. Stat. § 65-1826
The practice and procedure of the board with respect to any investigation made by it under authority of this act shall be in accordance with rules and regulations adopted by the board.
Each person who serves a subpoena shall receive the same fees as a sheriff, and each witness who appears in obedience to a subpoena, shall receive for attendance the fees and mileage provided by law for witnesses in civil cases in the district courts of this state. Such fees and mileage shall be paid by the board in the same manner as other expenses are paid by the board. No witness subpoenaed at the instance of a party other than the board or one of its members, or its administrative officer, shall be entitled to fees and mileage unless the board shall certify that the witness' testimony was material to the matter investigated.
K.S.A. 65-1826