“(1) Where a person has failed to make any returns required under this Act (or under any provision repealed by this Act) or to keep any documents and afford the facilities necessary to verify such returns or where it appears to the Commissioners that such returns are incomplete or incorrect, they may assess the amount of VAT due from him to the best of their judgment and notify it to him”
“(1) In any case where- (a) for the purpose of evading VAT, a person does any act or omits to take any action and (b) his conduct involves dishonesty (whether or not it is such as to give rise to criminal liability), he shall be liable… to a penalty equal to the amount of VAT evaded or, as the case may be, sought to be evaded, by his conduct”