The present and prospect of forensic science application of swabs
10.13618/j.issn.1001-5728.2025.03.015
- VernacularTitle:拭子的法庭科学应用研究现状及展望
- Author:
Xiaoting MO
1
;
Yiren YAO
1
;
Wei HUANG
1
;
Zhixing SUN
1
;
Sheng LI
1
;
Huan LIU
1
Author Information
1. 公安部鉴定中心;公安部鉴定中心法医遗传学公安部重点实验室,北京 100038
- Publication Type:Journal Article
- Keywords:
Swab;
DNA collection device;
Contact DNA;
Standardized method;
Forensic genetics
- From:
Chinese Journal of Forensic Medicine
2025;40(3):348-352,357
- CountryChina
- Language:Chinese
-
Abstract:
Sampling is the first stage of the DNA Typing in forensic science,and some studies found that the sampling technology affected the outcomes of"Contact DNA"testing.Since swabs are the most commonly used collection instrument for"Contact DNA",the researchers in forensic science field should pay more attention to study the collection efficiency of swabs.However,currently the majority of relevant research is focused on downstream testing processes,such as typing and amplification;the corresponding work on sampling performance by swabs is quite limited.Furthermore,the absence of an internationally recognized standard procedure makes it impossible to directly compare the collection results among laboratories.In this paper,a review on the use of swabs in the forensic science field is presented.It analyzes the collection efficiency,advantages and disadvantages of different swabs,and investigates the need and feasibility of developing a standardized method to evaluate the swab collection efficiency,for improving the sampling performance of swabs and ultimately increasing the detection rate of"Contact DNA"in forensic science.
