(2)Where any case has been assigned by the Central Government to the Serious Fraud Investigation Office for investigation under this Act, no other investigating agency of Central Government or any State Government shall proceed with investigation in such case in respect of any offence under this Act and in case any such investigation has already been initiated, it shall not be proceeded further with and the concerned agency shall transfer the relevant documents and records in respect of such offences under this Act to Serious Fraud Investigation Office.