CODIS

CODIS stands for?

Combined DNA Index System

When was CODIS Launched by the FBI?

1998

CODIS holds _____ ______ of individuals previously ______ or convicted of specific felony.

DNA profiles

arrested

What is the goal of CODIS?

provide investigative assistance to law enforcement.

What are the CODIS access levels?

LDIS - local DNA Index System

SDIS - State DNA Index System

NDIS - National DNA index System

What type of DNA record LDIS contain?

Forensic Unknown

Legal (Std.)

Volunteer samples

Missing persons

Who inputs the DNA records into LDIS?

MDSO qualified analysts; has direct access to sample info.

What is the minimum number of core loci from a sample profile that can be inputted into LDIS?

4 CODIS core loci

What is the LDIS match estimation?

1 - 999

What type of DNA record SDIS contain?

convicted offender

forensic unknown

arrestee index

suspect known

local labs profiles

ho inputs the DNA records into SDIS?

Florida Department of Law Enforcement (FDLE)

FDLE acts as a _________ between state labs and between ____ and state labs.

Mediator

FBI

________% of our hits are from state level?

80 - 90%

what is the minimum number of core loci from a forensic sample profile that can be inputted into SDIS?

7

What is the SDIS match estimation?

2 - 100

Profiles in the state database are assigned _________ which show what lab the sample profile originated from.

laboratory ID numbers

What information is displayed in the state database?

case # and item numbers

All state level hits made are reported to our lab by?

state CODIS admin in Tallahassee

when id MDSO CODIS admin informed of a match?

once State CODIS admin confirms.

match letter is submitted with name and DOB of suspect.

What is the turnaround time for match confirmations and info from state CODIS admin?

1.5 - 2 weeks

what type of DNA record NDIS contains?

ALL convicted offender, arrestees, Fed offender,

Legal specimens, forensic unknown, missing persons.

what is the minimum number of core loci from a forensic sample profile that can be inputted into NDIS?

8 loci

How long does it take for MDSO to receive official report with sample info from NDIS?

1 month

NDIS contains over__________ offender profiles as of Feb 2025

15,584,621.

what are 2 different types of matches in CODIS?

conviction - solved case

candidate - unsolved cases

what are the 3 stringency levels?

High stringency

Moderate stringency

Low stringency

Example of high stringency?

15,17 matches to 15,17

Example of moderate stringency?

15,17 matches to 15,15

Example of low stringency?

15,17 matches to 14,15

Moderate Match Estimation can be used to upload?

Forensic mixture samples

what are the minimum alleles per locus from a forensic mixture sample that can be inputted into CODIS?

4

how can you identify obligate alleles on CODIS?

a + sign