Detective Superintendent Tony Cook has been a CID officer with Greater Manchester Police for over 25 years. During his tenure as an SIO, he has led a number of high profile investigations including an operation into gangland violence at Moss Side and, more recently, an investigation into thewidely reported shooting of 15 year old Jessie James. He is a qualified Assessor for promotion and an Authorising Officer under RIPA and has completed numerous professional courses on all aspects of major crime investigation. Andy Tattersall, formerly Detective Superintendent in the GreaterManchester Police on the Force Major Incident Team, retired in 2007 after 33 years service and became the first ever Support Staff SIO in charge of a new Homicide Support Unit. A career detective with over 29 years in CID at all ranks, Andy is recognised locally and nationally as one of the mostexperienced investigators in the UK, holding the position of SIO for eleven years. In 2000 he was part of a select Specialist Advisory Team, created to assist the Metropolitan Police with the murder investigation of Jill Dando. Andy received the Homicide Working Group National Award for hisOutstanding Achievement in the Field of Homicide in November 2006.