pro.ceedings it is found that the price charged or sought about which the complaint was made, or the price discovered at the investigation to have been charged or sought, was such as to yield a profit which is, in view of all the circumstances, unreasonable, the seller shall be liable on summary conviction to a fine not exceeding two hundred pounds or to imprisonment for a term not exceeding three months or to both such imprisonment and fine: Provided that a rate of profit which does not exceed the fair average rate earned by persons in the same way of business as the seller upon the sale of similar articles under pre-war conditions, shall not be deemed unreasonable.
(3) If any person fails to comply with or infringes an order of the Board of Trade under this section, he shall be liable on summary conviction to a fine not exceeding fifty pounds or to imprisonment for a term not exceeding one month, or to both such imprisonment and fine, and in the case of an order requiring the repayment of any amount that amount shall be recoverable summarily as a civil debt.
(4) If any person at or for the purpose of any such investigation or on any such complaint knowingly and recklessly furnishes any information or makes any representation which is false in any material particular, he shall be liable on summary conviction to a fine not exceeding fifty pounds or to imprisonment for a term not exceeding three months, or to both such imprisonment and fine.
(5) Where a person convicted under this section is a company, the chairman and every managing director and every officer concerned in the management of the company shall be guilty of the like offence, unless he proves that the act which constituted the offence took place without his knowledge or without his consent.
(6) In any proceedings under this section to which the Board of Trade is a party, costs may be awarded to or against the Board.
(7) This Act applies to any article or class of articles to which it is applied by order of the Board of Trade, being an article or class of articles declared by the order to be one or one of a kind in common use by the public, or being material, machinery, or accessories used in the production thereof, but this Act does not apply to any articles which are from time to time declared to be controlled articles, and different provisions of this Act may be applied to different articles.
(8) The Board of Trade shall have power to require any person appearing before them under this Act to give evidence on oath, and shall have power to authorise any person to administer an oath for the purpose.
(9) In this Act the expressions "sale" and "seller" include respec'tively any offer for sale and any person offering to sell.
(10) Nothing in this Act shall apply to the sale of any article for export from the United Kingdom, or to the sale of any articles by public auction or competitive tender.