Scientific procedures to indict criminals have been in use for some time, as shown in On the Trail of Crime: Science in the Courtroom. Although the use of DNA and other genetic tools has become common in modern times, authorities began using technological means to present evidence as far back as the late 1800s. In this program, several cases are discussed, including the Guy-Paul Morin rape, in which DNA evidence played a large role. Before genetic testing became the norm, criminologists utilized serology to help them pinpoint perpetrators of crimes.
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