Fonterra's chief executive Miles Hurrell is being asked by Chile's prosecutor to hand over his computer files as part of an investigation into Fonterra's Chilean businesses.
The investigation was sparked by a complaint by a shareholder of Fonterra subsidiary Prolesur against Fonterra's appointed directors on the Prolesur board.
The directors include Fonterra employees Robert Spurway and Paul Campbell. Hurrell was chairman of Prolesur last year.
He is not named in the complaint, which relates to a commercial disagreement between Fonterra-appointed directors and minority Prolesur shareholder the Isabel Aninat charity foundation.
But Fonterra said Hurrell's files are among those sought by