I would like to thank the following people for their help and support:
Many thanks to my agent, Philip Spitzer, and to my editor, Patricia Mulcahy, for all their hard work, enthusiasm and belief in this book.
Also, thanks to the many police officers who over the years have given me an insight into their jobs and lives. I also want to acknowledge Tom Mangold and John Pennycate, whose bookThe Tunnels of Cu Chi tells the real story of the tunnel rats of the Vietnam War.
Last, I would like to thank my family and friends for their encouragement and unqualified support. And, most of all, I am indebted to my wife, Linda, whose belief and inspiration never waned.