Clause 20

In order to obtain such information as the Registrar may consider necessary for the purposes of carrying out the provisions of this Act or of any of the regulations made thereunder regarding any person the particulars of which and of his business are required to be registered under this Act, the Registrar may require any person responsible for the management of his business to answer any question in writing which the Registrar may consider necessary to ask for the purposes aforesaid or may summon such person to appear before him or an inspector or any other public officer whom the Registrar may designate to answer any such question orally and the Registrar may further require such person to make such further declaration or supply such further particulars as the Registrar may require.