Adjudication power: Board-appointed officers may hold inquiries, summon evidence and impose penalties subject to review and hearing. Section 19H empowers the Board to appoint an adjudicating officer to hold inquiries and impose penalties after giving persons a reasonable opportunity of being heard; the adjudicating officer may summon witnesses and require documents relevant to the inquiry. The Board may review records of such proceedings and, after hearing the person concerned, enhance the penalty if the adjudicating officer's order is erroneous and not in the interests of the securities market, subject to a prescribed temporal limitation.