(Chicago Defender) –A state database is still missing about 20,000 DNA samples from convicted felons that could be key to solving crimes. Authorities say efforts to collect samples continue to lag — eight years after Illinois started requiring convicted felons to submit DNA.  There’s some good news, though. The backlog stood at an estimated 50,000 as recently as September, and DuPage County State’s Attorney Joe Birkett says the effort is clearly making progress.

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