It's harder and harder to get away with murder. Today, detectives are convicting more criminals than ever before, thanks to forensic science. Fingerprints, bones, even insects are now forms of indisputable evidence, but that wasn't always the case. Revisit history's dramatic murder cases and see how forensic tools are changing crime solving. 1. 遗传指纹分析 (DNA Profiling) 2. 指纹 (Fi...