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CODIS and Database Searches

CODIS and Database Searches. Specimen Categories Alleged Father Biological Mother Convicted Offender Elimination, Known Forensic Unknown Missing Person Population Suspect, Known Unidentified Person Victim, Known. Indexes Specimen Categories Population Population

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CODIS and Database Searches

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  1. CODIS and Database Searches

  2. Specimen Categories • Alleged Father • Biological Mother • Convicted Offender • Elimination, Known • Forensic Unknown • Missing Person • Population • Suspect, Known • Unidentified Person • Victim, Known

  3. Indexes Specimen Categories Population Population Convicted Offender Convicted Offender Casework Forensic Unknown Unidentified Person Suspect, Known (in some cases)

  4. At, ,.

  5. High Stringency • The number of alleles and the allelic values must be the same. • If the evidence sample has two alleles at one locus, the matching sample must have two alleles of the same value.

  6. Moderate Stringency • The sample with the fewest number of alleles determines the number of alleles that must match. • If one sample has two alleles and the other has one allele, then only one allele must match to be considered a moderate

  7. Low Stringency At there must be at least one allele with the same value in both samples

  8. Minimum Number of Loci Required to Report a Match

  9. Include Candidate Specimens that Match on All but [X] Loci.

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