The Commissioner of Agriculture shall have power to subpoena dealers and others, and such books, papers, records, accounts and other data as in his judgment may be necessary to effectuate the policy and provisions of this part or any order, ruling, regulation or direction promulgated hereunder. The commissioner or his designated agent may issue subpoenas and administer oaths to witnesses. Witnesses so required to attend shall be entitled to the same fees and mileage as are paid to witnesses required to appear in the Superior Court. If any person fails to appear in response to such subpoena, to produce matter required thereunder or to answer any question addressed to him by the commissioner or his designated agent, the superior court for any judicial district or, if the person is not located in this state, the superior court for the judicial district of Hartford, or any judge thereof when such court is not in session, upon application made to it or to him alleging such failure, may make an order requiring such person to appear before the commissioner or his agent and answer any material question and produce the matter required; provided, when any testimony is refused upon a valid claim of privilege to prevent self-incrimination, such testimony may be required but shall not be used in any criminal proceeding to incriminate the witness claiming such privilege. If any person fails to comply with any requirement of such order, the court or judge shall commit such person to a community correctional center until he complies therewith, but not for a longer period than sixty days.