Original Research Papers · Research Paper P1
The Development and Construction of a Motorized Blood Droplet Generation Device (BDGD) for Detailed Analysis of Blood Droplet Dynamics
Original Abstract
Abstract
This work presents a motorized, mechanical blood droplet generation device (BDGD) capable of generating and projecting reproducible blood droplets at a range of sizes, velocities and directions relevant to a number of crime scene applications, particularly castoff and impact patterns. The BDGD has facilitated comprehensive, systematic, controlled experimental work including a detailed analysis of the fluid dynamics of blood drops during flight and impact. This level of control and reproducibility are impossible to achieve in experiments using human-wielded weapons. The BDGD is complemented by an LED lighting system, enabling droplet dynamics to be filmed with one or more high speed digital video cameras. It features an automated blood application pump, ensuring a controlled blood volume. The ability to generate and analyse blood drop dynamics in such a controlled manner lends itself to the development of statistical models which can aid in the presentation of objective bloodstain evidence.
Keywords: Forensic science; Bloodstain pattern analysis; BDGD; Blood drop; Dynamics
Authors & Publication
Article Details
- Environmental Science and Research Ltd (ESR), Christchurch, New Zealand.
- Department of Sport and Exercise Science, University of Auckland, New Zealand.
Corresponding author: Elisabeth Williams
Citation Information
| Document code | P1 · Research Paper |
|---|---|
| Journal | Forensic Science Seminar |
| ISSN | 2157-118X |
| Volume / Issue | 3 / 2 |
| Pages | 95–104 |
| Publication date | 5 June 2013 |
| Article HTML | https://fss.xxyy.info/journal/2013/2157118X.3.2.4.html |
| Full text PDF | https://fss.xxyy.info/journal/2013/2157118X.3.2.4.pdf |
Metadata Quality