51. Offences committed by body corporate

Where a person charged with an offence under this Act is a body corporate, every person who, at the time of the commission of such offence, is a managing director, manager or other similar officer of such body corporate, may be charged jointly in the same proceedings with the body corporate, and where the body corporate is convicted of the offence charged, every such managing director, manager or officer shall be deemed to be guilty of the offence unless he proves that the offence was committed without his knowledge or that he took reasonable precautions to prevent its commission.