CODIS Flashcards
Database
computer files containing DNA profiles that can be searched for a match
STR profiles you have, DNA profile uploaded, shared
Databank
collection of samples
Importance of DNA databases
help in cases without suspects, especially for finding repeat offenders
connect unsolved crimes
Successful databases
uniform loci
uniform allele naming
good quality assurance
US National DNA database indicies
offender index, forensic index, arrestee index
Offender index
convicted criminals
Forensic index
crime scene without suspects
Arresttee index
individuals arrested for a crime (not convicted; not allowed by all states)
US National DNA database tiers
local, state, national
CODIS
combined DNA index system
software designed to connect and search local, state, and national databases
sites are networked on the Criminal Justice Info Systems Wide Area Network
Hit
match between 2 or more profiles
Forensic hit
forensic match
Offender hit
either offender or arrestee match
Cold hit
no previous connection between samples
should be subjected to hit conformation
Stringency
can be lowered
