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CODE: 1167
 

THE DETERMINATION OF THE LIMITS OF THE USE OF AURICLE MORPHOLOGY FOR IDENTIFICATION

Asirdizer M, Tatlisumak E, Ozyurt B, Yavuz MS.

4th Mediterranean Academy of Forensic Sciences Meeting, 14-18 October 2009, Antalya-Turkey. Poster Presentation. Abstract CD of Poster Presentations. 2009: 111.

ABSTRACT

Introduction: For personal identification, the use auricle morphology attracted attention of scientists since 19th century. Nonetheless, the number of articles about identification by using the ear morphology or earprints increased in the last quarter of 20th century, especially in the last decade. In the present study, it was aimed to evaluate the usability of morphological appearance of ears with naked eyes for positive and negative identification and to define the accuracy rates in ear identification applied with naked eyes by experienced volunteers.

Material and method: This study was performed by permission of the Presidency of Scientific Ethic Board of Celal Bayar University and it was finished in three stages including the gathering of 120 ear images (60 right and 60 left) of 30 male and 30 female volunteers (between 18-26 ages), the observation of 20 volunteers experienced on the identification, and statistical analysis with SPSS-11 Statistic Program.

Results:  The mean age of observers was 41.9 years (SD: 6,4; range:30-51 years) and mean experience of them was  9.8 years (SD: 7,1; range: 2-21 years). Among 400 matching, the number and rate of total error was found to be 54 and 13.5% (SD: 12.89). The error rate in the matching of images of male and female volunteers were 12% (n=24) and 15% (n=30), respectively (p=0.01). The error rates were more than twice in left ears (19%; n=38) than right ears (8%; n=16) (p<0.01).

Discussion:  In the present study, the highest error rate of observers were 40% and the accuracy rates in ear identification applied with naked eyes by experienced observers was found to be 86.5 % (SD: 12.47). Even if these results were not encouraging, they were not disappointing also about usability of morphological appearance of ears with naked eyes for positive and negative identification. At least, this method may be used for first elimination in the differentiation of perpetrator(s) of a crime than suspicious persons.

In conclusion, for routine usability of ear morphology in forensic identification, the accompaniment of morphometric measurements and superimposition technique to the presented method will reduce, maybe remove the error rates, and the accuracy rate will access higher rates in ear identification.

Keywords: identification, ear, auricle, morphology, forensic sciences.

LÜTFEN YAYINLARIMIZA YAPTIGINIZ SİTASYONLARI, SİTASYON FORMU' NU DOLDURARAK BİZE BİLDİRİNİZ. TEŞEKKÜR EDERİZ.
 
 
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