Investigators search Deutsche Bank's HQ over tax trades

German prosecutors searched Deutsche Bank's Frankfurt headquarters on Wednesday. They're investigating alleged fraudulent tax transactions at its post-bank division between 2008 and 2010. Germany's largest bank confirmed Düsseldorf prosecutors were at its offices in the German financial centre. The lender said in a statement, Deutsche Bank is being searched as a third party in this matter and we are cooperating fully. Düsseldorf prosecutors confirmed they'd conducted searches in Frankfurt and elsewhere, but they didn't comment further due to tax secrecy rules. A person familiar with the matter said the search involved so-called come-come trades. They added post-bank offices in Bonn were also searched. Come-come schemes involved trading in stocks of German companies around dividend payout days. Authorities said this was tax fraud. The transactions grew during the financial crisis and authorities estimated the state was stripped of billions. A years-long crackdown has since tried to get the money back. Prosecutors and Deutsche Bank declined to comment on the details of the investigation.