The first phase of the audit focused on potential overcharges associated with the fraudulent transactions identified by federal investigators and an assessment of the internal controls surrounding the fraudulent transactions.
In 2009, the New York State Public Service Commission retained Charles River Associates, a management consulting firm based in Boston, MA, to perform a two-phase investigative accounting audit to determine how much money Con Edison owed to its customers for overcharges for the period 2000 to 2009.