Mike Silverman began his career as a biologist with New Scotland Yard's Forensic Science Laboratory, specializing in blood pattern analysis, murder and sexual assault investigations. He became one of the first civilian heads of scientific support (CSI and fingerprints) and introduced the first automated fingerprint identification system. His career took him abroad as Head of International Services for the Forensic Science Service and finally to the Home Office as the first Forensic Science Regulator. Tony Thompson is widely regarded as one of Britain's top true-crime writers. A former crime correspondent of the Observer, his major works include Gangland Britain, Bloggs 19, Gangs, Reefer Men, Gang Land and Outlaws. He has twice been nominated for the prestigious Crime Writer's Association Gold Dagger for Non-Fiction, winning the coveted title for his book The Infiltrators. He regularly contributes articles to various newspapers and magazines and appears on both television and radio as an expert on crime-related matters.