DNA databanks maintained by law enforcement agencies contain vital information about convicted felons.
Investigators pan the crime scene with methodic precision.
Donned in latex gloves, they dust for fingerprints, tweeze tiny hair fragments from the carpet, and scrape blood samples from the wall. The evidence is then whisked to the forensic laboratory where scientists search for the DNA code that they hope will identify the culprit. You can dispute the charges, fabricate an alibi, and flee from justice. But you can not deny your DNA, the master molecule of life found within every human cell. Little more than a decade has passed since DNA evidence first was admitted in a criminal case in the United States.