the DOJ doesn't convene a Federal Grand Jury to pursue criminal acts purely on a letter from a former employee of a company. There is much more here Current management commented that the Company has not found any indications that the subject matter contained in the letter is true concerning the conduct of prior officers of the company. However, the company's internal investigation on the matter is still in process. The Company also clarified that no subpoenas have been served on the Company, it's current or former officers, or anyone affiliated to the Company.