Rogue Databases News Today

Theft or public drunkenness. >> i think were the first to do it. >> reporter: they say the database helps solve cold cases and will help solve crimes in the future. experts say the number of local agencies getting into the dna business spiked. >> through use of dna, theres cases out there that show you can get more arrests, more convictions. >> reporter: some of those who have given their dna and been cleared of a petty crime find themselves arrested for a more serious crime still on the books. ...

Prosecutor may drop charges for low-level crimes like petty theft or public drunkenness. >> i think were the first to do it the way were doing it. >> which orange county has 90,000 dna samples on file. experts say the number of local law enforcement agencies getting into the dna business has spiked. >> through the use of dna, theres been cases out there that show you can get more arrests, more convictions. >> reporter: for years state and federal authorities have collected dna, compiling large d...