Spokesmen for the Justice Department, the SEC, the CFTC and the CME declined to comment. An attorney for Corzine didn’t return a call for comment.
That doesn’t mean Corzine and senior officials at MF Global won’t face any charges of some kind. Officials in the CME Group -- the holding company of the Chicago Mercantile Exchange where MF Global was a member firm -- have said they believe the firm broke the law when it used the customer funds to pay off creditors or for other purposes, as now appears the case. Even though the CME has yet to officially conclude it probe, officials, including its executive chairman  Terrence Duffy, have said any use of customer funds would be illegal.
But any case by the CME, the SEC or the CFTC would be civil in nature, meaning that the level of evidence to charge individuals with securities fraud is lower than the amount of evidence that must be produced by criminal authorities for them to bring charges.