Submitted in response to written requests from the Inquiry, usually providing lists of questions to be answered. In most cases these formed the basis of questioning in public sessions, but in some cases they were read into the record (or taken as read) and the witness did not appear in person.
Given by witnesses invited by the Inquiry, normally after they have made written statements. These sessions could be viewed live online and sometimes on television news services, and the video recordings are part of the archive. The statements were usually released to the public after the public sessions.
Independent official body appointed by the Crown. The Commissioner's decisions are subject to the supervision of the Courts and the Information Tribunal. The Office's mission is to "uphold information rights in the public interest, promoting openness by public bodies and data privacy for individuals". Christopher Graham, Commissioner at the time of the Inquiry, said he had seen no evidence of phone hacking since 2006 and was not aware of any repetition of the breaches of data-protection laws uncovered by Operation Motorman.