ON LINE REPORTING The complainant may remain confidential (i.e., known only to the OIG), allow their name to be used (i.e., included in any investigation that may take place), or anonymous (i.e., unknown even to the OIG). If the complainant chooses to remain anonymous, OIG cannot obtain additional information on the allegation (e.g., testimonial or documentary evidence; identity of witnesses), and also cannot inform the complainant as to what action OIG has taken on the complaint. Confidential status allows further communication between OIG and the complainant after the original complaint is received.