The Discussion of semen stains examination in the field of forensic applications
10.13618/j.issn.1001-5728.2017.S1.006
- VernacularTitle:PSA试验在精斑检验中的应用探讨
- Author:
Yi ZHAO
1
;
Mengyuan LI
;
Ying LIU
;
Zhiyong LU
;
Qingxia ZHANG
;
Zhangping JIAO
Author Information
1. 北京市公安局刑侦总队
- Keywords:
PSA test;
semen stain;
STR;
differential lysis method;
forensic evidence
- From:
Chinese Journal of Forensic Medicine
2017;32(z1):13-16
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the significance of a comprehensive test on the semen stain in the field of forensic evidence;Methods PSA tests performed on samples obtained supernatant and sediment STR genotyping by differential lysis method;Results Through STR testing,there are inconsistencies with the PSA test results in which 13 cases of false positive and false negative in 1 case.The supernatant was detected in two cases of male component,coeducational 9 cases;Conclusion PSA test strips there are some false positive and false negative rate,test isolated by the difference lysis supernatant can not only increase the success rate of the fine on the semen stain can also as a supplement to bring more valuable information for the semen stain.
