A superseding indictment is a document that amends and replaces the original indictment, listing the formal charges against a defendant. It is typically approved by a grand jury after additional information or evidence has been obtained, and the new document usually adds charges or defendants to the case. In rare instances, minor deletions of details included in the initial indictment have been permitted. A superseding indictment can include different charges, new charges, or add new defendants. Once the grand jury returns a superseding indictment, it replaces (supersedes) the original indictment. A superseding indictment can occur at any time during the proceedings, from the initial filing.