The Combined DNA Index System (CODIS) is a software program developed and provided by the Federal Bureau of Investigation (FBI) to National DNA Index System (NDIS) participating laboratories. Each participating laboratory must meet specific requirements to participate in the use of the CODIS Software. The purpose of CODIS is to generate investigative leads in cases where DNA evidence is collected from the crime scene.
There are three levels within the CODIS software which compare DNA profiles:
- Specific to individual laboratories within the state
Primarily evidence profiles
- Specific to the state of WI
Evidence profiles uploaded from LDIS laboratories
Convicted offender and some arrestee profiles
- Maintained by the FBI for all laboratories (federal, state, and local) that participate in CODIS
Evidence profiles uploaded from SDIS laboratories
Offender and arrestee profiles uploaded from SDIS laboratories
NDIS participating laboratories must have designated CODIS Administrators (and Alternate CODIS Administrators) at SDIS and each LDIS laboratory.
Administrator responsibilities include:
- Manage and maintain CODIS for their respective state or local laboratory
- Point of contact for other NDIS laboratories, FBI’s NDIS Custodian/CODIS Unit
- Maintain security, integrity, and quality of data in CODIS
Please direct any questions about CODIS to , or refer to the contact information for the lab in your service area.