First, many thanks to those who read and commented on the manuscript throughout its development: my wife and first reader, Sheila Halladay; my agent, Dominick Abel; my editor, Patricia Lande Grader; and my copyeditor, Erika Schmid. Also, many thanks to Robert Barnard for reading the finished manuscript and providing valuable comments.
While I frequently tweak police procedure for dramatic purposes, any accuracy I may demonstrate in the matter is owing entirely to my conversations with Area Commander Phil Gormley, Detective Inspector Alan Young and Detective Inspector Claire Stevens, all of Thames Valley Police, and Detective Sergeant Keith Wright, of Nottingham C.I.D. Any mistakes are my own.