Investigation into Niersbach may throw light on to role played by former Concacaf president Jack Warner.
Considering the bans handed out to some of football's bigwigs, Wolfgang Niersbach has been treated leniently.
One of the leading figures in European football is the latest to suffer ignominy of ban.
Niersbach remains a key player within Uefa and Fifa.
Former head of DFB denies any wrongdoing.
German football hierarchy effectively put on trial by Fifa.
FIFA's new chief investigator would be advised to examine how Germany secured the 2006 World Cup, before he embarks upon analysing the process that saw Russia and Qatar awarded the…