Lawmakers on the Oversight and Investigations Subcommittee of the House Financial Services Committee held a hearing on March 28 to investigate the events that led to the loss of customer funds at MF Global during its final days before going into bankruptcy. The witnesses included four current and former MF Global executives. At the start of the hearing, Representative Randy Neugebauer (R-Tex.), the chairman of the subcommittee, emphasized to the witnesses that his committee is simply trying to discover what took place. “This is a hearing and not a trial,” Neugebauer said at the onset of the three-hour hearing. “It’s…