犯罪側寫在罪案調查中起著重要的作用。在傳統調查方法無功而返的情況下，犯罪側寫師能根據現有的證據大致描繪出嫌疑犯的外貌和性格特徵。
Profiling has played a major role in criminal investigations. When traditional investigative methods go nowhere, profilers look at evidence to form a theoretical description as to who the killer might be.
微小的線索也許無法用肉眼看見，但卻是現代法醫學的有力工具，哪怕兇手認為自己已經完美地掩蓋了罪行，法醫依然能將其繩之以法。
Minuscule evidence that can't be seen with the naked eye, is a crucial investigative tool in modern forensic science. It catches killers who think they've done everything to cover their tracks.
二十世紀九十年代傑克遜維爾聖萊姆的大火催發了現代火災調查的誕生，到了2007年，最先進的火災調查技術幫助警方將新澤西葛拉斯堡羅的一個少年縱火犯繩之以法。
Modern fire investigation was born during 1990's horrific Lime St. Fire in Jacksonville. It then fully came-of-age in 2007 when science brought a teenage arsonist to justice in Glassboro, NJ.
血跡分析是調查暴力犯罪的重要手段之一，不過直到二十世紀五十年代，著名的山姆謝波德殺妻案登上了報紙的頭版頭條，這項調查技術才奠定了自己的鞏固地位。
Bloodstain analysis is a key factor in investigating any violent crime, but it didn't gain a foothold until the 1950s when the infamous Sam Sheppard case made headlines around the world.
