Combined DNA Index System
Combined DNA Index System
The Combined DNA Index System (CODIS) is a software platform that blends forensic science and computer technology. It is used to maintain and search DNA profiles created by federal, state, and local crime laboratories in the United States. CODIS was established and is managed by the Federal Bureau of Investigation (FBI).
History[edit | edit source]
CODIS was launched in 1990 as a pilot project to assist in criminal investigations by creating a centralized database of DNA profiles. The system became fully operational in 1998, following the passage of the DNA Identification Act of 1994, which provided the legal framework for the collection and use of DNA profiles in criminal investigations.
Structure[edit | edit source]
CODIS operates on three levels: local (LDIS), state (SDIS), and national (NDIS). Each level allows for the storage and searching of DNA profiles.
- Local DNA Index System (LDIS): Managed by individual crime laboratories.
- State DNA Index System (SDIS): Managed by state laboratories, which can access and share data with local laboratories.
- National DNA Index System (NDIS): Managed by the FBI, allowing for the sharing of DNA profiles across state lines and with federal agencies.
Functionality[edit | edit source]
CODIS enables the comparison of DNA profiles from crime scenes, convicted offenders, arrestees, and missing persons. The system uses a set of standardized Short Tandem Repeat (STR) markers to ensure consistency and reliability in DNA profiling.
Applications[edit | edit source]
CODIS is used in various applications, including:
- Identifying suspects in criminal investigations.
- Exonerating individuals wrongfully accused or convicted of crimes.
- Identifying human remains in mass disasters.
- Linking serial crimes to a single perpetrator.
Privacy and Ethical Considerations[edit | edit source]
The use of CODIS raises important privacy and ethical issues. The collection and storage of DNA profiles must comply with legal standards to protect individuals' privacy rights. The Fourth Amendment of the United States Constitution provides protections against unreasonable searches and seizures, which is a critical consideration in the context of DNA collection.
Related Pages[edit | edit source]
- DNA profiling
- Forensic science
- Federal Bureau of Investigation
- Short Tandem Repeat
- DNA Identification Act of 1994
See Also[edit | edit source]
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