290 likes | 447 Views
Human identification: the anthropologist’s role. Dana Austin, Ph.D. Diplomate, American Board of Forensic Anthropology Tarrant County Medical Examiner District Fort Worth, TX. Traditional Forensic Anthropology Identification. Comparative Osteology/Human Osteology Craniometry/Osteometry
E N D
Human identification: the anthropologist’s role Dana Austin, Ph.D. Diplomate, American Board of Forensic Anthropology Tarrant County Medical Examiner District Fort Worth, TX
Traditional Forensic Anthropology Identification • Comparative Osteology/Human Osteology • Craniometry/Osteometry • Ancestral morphology • Sex identification • Age estimation • Radiological comparison • Facial reconstruction
Traditional Anthropology Method Limitations • Generalizations only • Biological Profile • Individualizing Traits • Exclusions are possible • Positive identification not possible
Unidentified Skeletal Remains1963 • White Female • 35-40 years of age • 5’5” to 5’7”, 135-140 lbs • Light brown or dark blond hair • Large nose with high bridge • 8 dental restorations • Ladies jacket, green with gold lining • Blue teen-age type socks • PMI greater than 6 months
Death Investigation thru 1964 • D.P.S., Crime Briefs Bulletin • Newspaper story with facial drawing of female • Case submitted to Dallas PD, DPS Austin, FBI, LA State Police, Am. Dental Assn, OK DPS, • Comparison of dental records with missing women in OK, LA, TX, CA, PA
2004 Analysis • White MALE • 33-45 years of age • 5’4” to 5’11” • Long term infection of middle ears • PMI less than 1 year
Postmortem Interval Postmortem Interval
Facial reconstruction by Suzanne Baldon, MAPresented to Media
Kenneth Glaze White male 35 years old Relative tells detective that Kenneth always suffered with his ears Disappeared August 1963 (PMI=4 mos) Unidentified Skeleton White male 33-45 years of age 5’4” to 5’11” Long term infection of middle ears PMI less than 1 year Generalizations
And….the facial reconstruction looks great • Its not enough for a scientifically proven positive identification
Positive Identification • Identification confirmed via mitochondrial DNA comparison with maternal relative
What did we do in the old days? • Decedents with a good tentative id were buried as John & Jane Doe • A lot of time and resources were used to try to locate obscure medical or dental records
Jane Doe 1991Biological profile, clothing & jewelry description released to media
Unidentified Female 1991 • Body was mummified • Fingerprints were obtained from some fingers • Fingerprints were compared to known missing white females, but the quality of the print wasn’t good enough • Body buried as unidentified
2008 Identification • Fingerprints sent to Department of Homeland Security, Biometric Support Center • They were able to confirm identity with an IAFIS hit • This female was a possible match in 1991
Today we have more resources • Digital radiographs • Improved clarity • Retention by hospitals • Amelogenin marker tells us the sex • CODISmp
Isolated Skeletal Elements C. 1999 Arlington PD A. 1995 Euless PD B. 1995 Fort Worth PD
B A C
Brow Ridge Large mastoid process
Elliptical Palate Shape Inca Bone
1995 & 1999 cases • Amelogenin marker tells us all are male • XY • This eliminates half of our possibles (in theory) • CODISmp associated these bones with one another • This allowed a more detailed UNID entry including dental and stature information and allowed for a modified age estimation.
Resources • www.namus.gov • www.baldonart.com • www.txdpsmpch.gov