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blood types
discovered first genetic markers useful for human identification, ABO blood groups -
human blood cells are grouped
they are put into 4 antigenic groups -
Period: to
DNA Technology
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Mode of inheritence
The mode of inheritence was inferred from the population frequencies of the four groups. -
Blood cell systems
17 blood cell systems were discovered by this time, but they were not yet useful for identification. -
Random match calculations
Analasis of evidence samples and calculations of randon matches could be calculated -
RFLP Marker
Ray White describes first polymorphic RFLP marker -
DNA Fingerprinting or DNA Typing
English geneticist Dr. Alec Jeffreys demonstrated DNA Typing in criminal investigation -
CODIS Database
FBI launched CODIS database, all 50 states passed laws requiring police departments to collect DNA samples -
preparing for the future of DNA
National Commission on the future of DNA evidence was created at the request of Attourney General Janet Reno -
DNA evidence in cold cases
U.S. Department of Justice released a resource for law enforcement to find evidence of DNA in cold cases -
future: DNA matching device
A device used in crime investigation. The device holds the dna of the suspect and then a scanner in the device is used at the crime scene to prove a suspect guilty.