Concept:
Forensic DNA databases are used to store DNA profiles obtained from crime scenes and individuals. These databases help investigators compare DNA evidence and identify suspects in criminal investigations.
One of the most widely known DNA database systems is CODIS.
Step 1: Understanding CODIS.
CODIS is a computerized database system used in forensic science to store and compare DNA profiles. It helps law enforcement agencies match DNA evidence from crime scenes with profiles stored in the database.
Step 2: Identifying the full form of CODIS.
The full form of CODIS is:
\[
\boxed{\text{Combined DNA Index System}}
\]
It allows forensic laboratories to exchange and compare DNA information, thereby assisting in solving crimes and identifying offenders.