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.
McLaughlin was Professor of Criminology at the School of Arts and Social Sciences of City, University of London at the time of giving evidence. Together with Dr Greer (later Professor Greer), he submitted extensive academic research on the changing nature of news media/police-chief relations in the wake of phone-hacking, "trial by media" and hostile relations between press and police on issues of race.