Typescript statement of Frank Lagan before [a notary] on his involvement as an RUC officer in the lead up to, and events of, 30 January 1972 ('Bloody Sunday') in Derry, and on his further observations of activities on the day. The statement (18 pp) encloses 9 attachments (38 pp). Enclosing copy of most of the attachments to the report. (With yellow underlinings by [Eamonn Downey] throughout the main body of the document.)