Mr David Herman, head of GM's local operations accused Mr Gerhardt Schroeder, prime Minister of Lower Saxony and a member of the VW supervisory board, of trying to use his political weight to influence the investigations by state prosecutors in Hesse into claims of industrial espionage against GM.

Based on that paragraph can we conclude that this sentence is true?
Official investigations into claims of industrial espionage against GM were conducted by VW's board.