- Course Introduction
- 01: Evidence, Science & DNA
- 02: Forensic Biology
- 03: DNA Extraction & Quantitation
- 04: DNA Amplification
- 05: Amplified DNA Product Separation
- 06: STR Data Analysis & Interpretation
- 07: Population Genetics & Statistics
- 08: Communicating Results
- 09: Other DNA Markers & Technologies
- Course Resources
- Quality Assurance Standards
- CODIS
- Safety
- Introduction
- Safety Requirements
- Occupational Safety & Health Administration (OSHA)
- National Institute of Safety and Health (NIOSH)
- Laboratory Accreditation
- Scientific Working Group on DNA Analysis Methods (SWGDAM)
- National Fire Protection Associate (NFPA)
- American National Standards Institute (ANSI)
- Quality Assurance Standards for Forensic DNA Testing Laboratories (QAS)
- International Labour Organization (ILO)
- Components of a Safety Program
- Works Cited & Online Links
- Literature
- Laboratory Training Manual
President's DNA Initiative
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Advancing Justice Through DNA Technology
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Advancing Justice Through DNA Technology
DNA Analyst Training
Types of Profiles in the Database
Home > Course Resources > CODIS > Types of Profiles in the Database
Convicted Offender Profiles
Convicted offender profiles account for most of the entries in a state's DNA database. Every State in the Union has passed some form of legislation regarding the collection of DNA samples from convicted offenders.
Forensic Profiles
The second most common entry in DNA databases consists of forensic profiles. These are profiles developed from evidence in forensic cases. Significant numbers of the forensic profiles entered by individual states into CODIS are the probative profiles from cases where the perpetrator is not known, commonly referred to as unsolved cases. Additionally, states also enter forensic evidence profiles that match the reference profile of the suspect in that case (solved cases). The forensic profiles are entered into CODIS in the hope that a match will result from a search of the database, and an investigative lead generated.
Arrestee Profiles
A few states collect DNA samples from individuals arrested for certain offenses and maintain those DNA profiles in an arrestee database. In those states, there is a specific law requiring individuals arrested for qualifying offenses to provide a DNA sample for the database. Changes in federal laws in 2006, allow these profiles to be upload to NDIS; prior to this change they were ineligible for NDIS upload.05
Suspect Profiles
Some states also maintain a suspect database which contains the suspect's reference profile lawfully collected in connection with a criminal case.
Unidentified Human Remains, Missing Person, and Relative of Missing Person Profiles
Some states also enter unidentified human remains, missing person, and/or relative of missing person profiles into CODIS. Often, these missing persons-related profiles include results from mtDNA analysis as well as STR profiles.
