دانلود کتاب DNA Crime Investigations. Solving Murder and Serious Crime Through DNA and Modern Forensics

The daily newspaper in February 2009 has an image of an old man shackled to a police officer by handcuffs. It looks like any other arrest and detention. But the man had committed a serious sexual offence eighteen years earlier. The latest use of DNA evidence was used to charge and ultimately convict him.When Professor Alex Jeffreys worked with Leicestershire police on the Colin Pitchfork case in 1986, a revolution started in the application of forensic expertise. Since then there have been several major cases in which long-standing murders and rapes have been revisited by teams of 'Cold Case' detectives. With new DNA sampling in their armoury, officers throughout the land are having successes when reinvestigating serious crimes. Cold cases are hot again.In Cold Cases Revisited, Stephen Wade has gathered together most of the high-profile cases of recent years - and several obscure ones - examining the nature of the crimes, the investigation highs and lows, and the triumphs...