(3)While holding an inquiry, the adjudicating officer shall have power to summon and enforce the attendance of any person acquainted with the facts and circumstances of the case to give evidence or to produce any document which in the opinion of the adjudicating officer, may be useful for or relevant to the subject matter of the inquiry and if on such inquiry, is satisfied that the person has failed to comply with the provisions of any of the sections specified in sub-section (1), he may recommend such penalty as he thinks fit in accordance with the provisions of any of those sections.