CRIM 355 Lecture Notes - Lecture 10: Genetic Testing, Cell Nucleus, Tandem Repeat
20 Mar 2017
School
Department
Course
Professor
Document Summary
Caucasoid: oval-round in x-section, fine to coarse pigment evenly distributed. Treated hair: breaks easily: hair that is forcibly removed: root is usually still attached. 20 or more factors for comparison need a comparison sample: comparing the unknown hair at the scene with the suspect + victim adequate sample required: rcmp. 30-50 pulled pubic hairs from all over region. Forensic biology: biological material, blood, semen, saliva, hair, tissue etc. Can it be individualized? (can we put a name to it?) Training: minimum: bachelor of science in biology, molecular biology, Diploma is acceptable for basic work: do not level up on the job. Hairline: class characteristics: hair sheds everywhere, sheds all the time. Negroid: flat, oval in x-section, very curled, dense uneven pigment. Coincidental match: negative: not consistent with the donor. Known sample was not representative/contained too few hairs. Class evidence: not usually individualizing: corroborative evidence, o(cid:374)l(cid:455) i(cid:374)di(cid:448)idualizi(cid:374)g if it"s the hair root: dna, hair shaft: mtdna, maternal line only.
