What are sources and categories of DNA samples for Missing Persons?
There are three different categories associated with Missing Persons' Cases: Direct Reference Samples (DRS), Family Reference Samples (FRS), and Unidentified Human Remains Samples (UHR).
Direct Reference Sample (DRS): samples obtained directly from the missing person.
The following samples are considered acceptable for Missing Persons Direct Reference Samples:
- Medically obtained blood cards, whole blood, or a tissue specimen that was collected from the missing person
- A toothbrush used only by the missing person
Family Reference Samples (FRS): samples obtained from family members of the missing person. Close relatives and/or maternal relatives' samples are the most useful.
- Buccal/Oral swabs
- Blood Cards
Unidentified Human Remains Samples (UHR): samples obtained from unidentified human remains.
- bones (skeletal remains)