Transcript 1PersonMixture#1

1 Person Mixture #1
The Alien Case
(Type 0 Mixture)
Scenario
• Victim says the smoking man tried to kill her
and her fellow agent
• An alien came and scared the smoking man
away
• But, in his haste the smoking man dropped his
cigarette butt
• When the Alien ship left, it damaged the
cigarette butt
• Only a partial profile was obtained
The Egram
The Data Table
What would you lab do
1. We wouldn’t use
this sample
2. Exclusions only
3. Use for inclusions
but only use 2 allele
loci for stat
4. Use all loci for stat
(some form of 2p)
5. Other (LR, no stat….)
20%
1
20%
20%
2
3
20%
4
20%
5
0 of 30
30
Countdown
Interpretation
• It’s a partial profile
• But it’s consistent with only one contributor
• Easy stat – must account for “Allele, Any”
genotypes
• We actually have 2 ways to do it
“Mixture Stat”
• One way is to send it to the mixture page
• Yes, I know it’s not a mixture
• But I need to over-ride the single allele loci to
change them from homozygotes to Allele, Any
• Pick each genotype one at a time
“Mixture Stat”
• For the 2 allele loci, pick the heterozygote
combination
“Mixture Stat”
• For the 1 allele loci, pick the Allele, Any option
“Deconvolute It”
• Or, make a profile with a record of all the
“Allele, Any” loci using the “Popout calls”
function
• As soon as I click “Any”
the “Any” will go into
the table
Then the mixture page does it for me
• 1 in 19 Million