National High Tech Crime Unit warns firms to leave computer forensics to the experts. Companies that fall victim to computer crime may be inadvertently destroying evidence in their efforts to find the perpetrators. Detective Chief Superintendent Len Hynds, of the National High Tech Crime Unit (NHTCU), said that its Confidentiality Charter, launched in December 2002, was encouraging more businesses than ever to report computer crime. But there are sometimes problems with gathering evidence if preliminary investigations have been carried out before the police are called in. Full Story