ST. PAUL (AP) -- The Minnesota Bureau of Criminal Apprehension hopes that even a drop of bodily fluid can help catch those responsible for 96 old, unsolved killings, rapes and other crimes.
The BCA sent letters to more than 60 police departments around the state asking them to take another look at their old cases with the hope that improved DNA testing can help solve some of them.
The goal is to find untested evidence such as small samples of blood, hair or semen that could be matched to a suspect.
BCA Superintendent Michael Campion said new testing technology available since last year can identify DNA from tiny samples. Earlier DNA tests needed a dime-size stain of bodily fluid. The new test will work with samples 1/16th-of-an-inch wide.
Crime lab scientists have used the new testing technology in 15 to 20 recent and old cases. One case resulted in the charging of an Apple Valley man this month in a 1989 murder.
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