A study on the use of crime scene investigation umbrellas to achieve a rapid luminol test for bloodstains in strong light environment
10.13618/j.issn.1001-5728.2024.05.014
- VernacularTitle:利用遮光伞实现强光环境中血痕鲁米诺快速检验的研究
- Author:
Zhao LIU
1
,
2
;
Zunlei QIAN
;
Weixuan CONG
Author Information
1. 中国人民公安大学侦查学院,北京 100038
2. 刑事科学技术北京市重点实验室,北京 100038
- Keywords:
Forensic science;
Crime scene investigation;
Bloodstain;
Luminol;
Crime scene investigation umbrella
- From:
Chinese Journal of Forensic Medicine
2024;39(5):596-599
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the use of crime scene investigation umbrellas to solve the problem that it is difficult to show the luminol test for bloodstains in strong light environment.Methods Three objects:red bricks,soil and black cloth were selected,samples with different concentrations of blood and different retention times were,prepared,luminol tests were performed on the same type of samples in a strong light environment,under the umbrella and in a dark room respectively,and photograghic evidence were obtained.Results It was found that bloodstains that could not be directly visualised by luminol test in the strong light environment could achieve better effects in the dark environment formed by the umbrella,and showed unsignificant difference from the results in the dark room.Conclusion Using the umbrella to create a relatively dark environment in strong daylight can easily and quickly perform the luminol test for bloodstains,providing an effective way to discover and extract blood stains in on-site investigations.
