The National Anti-Corruption Commission unanimously ruled by 7:0 votes to fault Mr Tarit of being unusually rich, said Mr Preecha Lertkamolmat, a member of the NACC, disclosed on Thursday.
Earlier, the NACC impounded about 90 million baht worth of assets seized from Tarit and his wife, Mrs Wassamon.
But investigation by a probe panel of the NACC uncovered that the former DSI chief had amassed much more wealth than the 90 million baht worth of assets already impounded.
The rest of the ill-gotten wealth were found to have been transferred to his nephew, Mr Piyaruek Atthakarnrat and the Piyathanawat company whose directors are Piyaruek and Mrs Karnda Puedchanthik, younger sister of Tarit’s wife.
The NACC admitted it could not trace the whereabouts of the remaining 256 million baht worth of wealth.
The NACC’s investigating report about Tarit was submitted to the Office of Attorney-General with a recommendation that his impounded assets should be confiscated.