“A law should not seek to regulate the black-sheep. You must deal with them through penal action. Just because one Satyam happened and one Sahara happened, everyone else has to play penalty for that,” he said while speaking at an event here late last evening.Sharma, who was appointed non-executive chairman in June after his predecessor K V Kamath became first President of the recently launched BRICS Bank, said that various stakeholders including the industry, ICAI and ICSI should be consulted again for rewriting the legislation.