This book would not have been possible without help from many sources. First to former DCI, Nanette Pollock, my heartfelt thanks for being my main source of information about the world of prostitutes in Glasgow, especially given her role as Senior Investigating Officer in so many high-profile murders of street women during her career; to Katy for sharing her stories with me; to Annabel Goldie for a great day at the Scottish parliament and a lovely lunch; to Alistair Paton for his continuing help with guns; to David Robertson for a good chat about forensic chemistry; to DC Mairi Milne and DI Bob Frew for keeping me right with the details; to Detective Superintendent Derek Robertson for ideas gained during a great lecture at the Scottish Medical Legal Society; to Dr Marjorie Turner for being such an ally to both me and to Rosie; to Ian Dutfield at Mercedes-Benz of Glasgow for sending me all the brochures and not minding that I didn’t want to buy a new car; to the staff of the Malmaison Hotel for being so helpful and for the great gingerbread men; to the staff at the Blythswood Square Hotel for allowing me to poke around; to John (the one and only bird man) for the photos of the Monte Carlo Rally and for alerting me to the waxwings in Blythswood Square; to Philip and Elena for letting me use her maiden name; to Caroline for being such an enthusiastic editor; to Jenny Brown for always being there to support and encourage me; to Moira who makes my life so much easier; to Kirsteen, Sally, Vanessa, Thalia, Madeleine and all the staff at Little Brown who conspire to make it all happen, especially to David Shelley who believed in me from the beginning; to Sophie Neal for forensic advice. To my family for not minding having a mad writer amongst them, especially to Donnie who loves me even when the red mist descends…