“…'You have to prepare but you can't be prescriptive', as another senior manager put it, 'because each incident is different'. These views, widely echoed, chime with observations in the literature, which warn, in turn, that disasters cut across the local jurisdictions within which plans are framed and that plans edit out uncertainties, depicting partial or distorted data as if it were precise (Smithson, 1990;Blanco, Lewko, and Gillingham, 1996;Smallman and Weir, 1999). Perry (2004, p. 65) criticises 'lengthy plans that attempt to anticipate every possible event and prescribe correctives'.…”