French authorities are searching the offices of several major banks including Société Générale, BNP Paribas and HSBC on Tuesday on suspicion of money laundering.French authorities are searching the offices of several major banks, including Societe Generale, BNP Paribas and HSBC on Tuesday on suspicion of money laundering and tax fraud, a spokesman for the PNF's financial prosecutor's office told Reuters. The General Society confirmed the searches. The other banks involved could not immediately be reached for comment. The spokesman confirmed earlier report