3D bloodstain pattern analysis: Ballistic reconstruction of the trajectories of blood drops and determination of the centres of origin of the bloodstains.

05:30 EDT 28th August 2015 | BioPortfolio

Summary of "3D bloodstain pattern analysis: Ballistic reconstruction of the trajectories of blood drops and determination of the centres of origin of the bloodstains."

For crime scene investigation in cases of homicide, the pattern of bloodstains at the incident site is of critical importance. The morphology of the bloodstain pattern serves to determine the approximate blood source locations, the minimum number of blows and the positioning of the victim. In the present work, the benefits of the three-dimensional bloodstain pattern analysis, including the ballistic approximation of the trajectories of the blood drops, will be demonstrated using two illustrative cases. The crime scenes were documented in 3D, using the non-contact methods digital photogrammetry, tachymetry and laser scanning. Accurate, true-to-scale 3D models of the crime scenes, including the bloodstain pattern and the traces, were created. For the determination of the areas of origin of the bloodstain pattern, the trajectories of up to 200 well-defined bloodstains were analysed in CAD and photogrammetry software. The ballistic determination of the trajectories was performed using ballistics software. The advantages of this method are the short preparation time on site, the non-contact measurement of the bloodstains and the high accuracy of the bloodstain analysis. It should be expected that this method delivers accurate results regarding the number and position of the areas of origin of bloodstains, in particular the vertical component is determined more precisely than using conventional methods. In both cases relevant forensic conclusions regarding the course of events were enabled by the ballistic bloodstain pattern analysis.

Affiliation

University of Bern, Institute of Forensic Medicine, Buehlstrasse 20, 3012 Bern, Switzerland; State Police Bern, Accident Service, Schermenweg 9, 3001 Bern, Switzerland.

Journal Details

This article was published in the following journal.

Name: Forensic science international
ISSN: 1872-6283
Pages: 22-8

Links

PubMed Articles [24782 Associated PubMed Articles listed on BioPortfolio]

Bloodstain Pattern Analysis: implementation of a fluid dynamic model for position determination of victims.

Bloodstain Pattern Analysis is a forensic discipline in which, among others, the position of victims can be determined at crime scenes on which blood has been shed. To determine where the blood source...

HemoVision: An automated and virtual approach to bloodstain pattern analysis.

Bloodstain pattern analysis (BPA) is a subspecialty of forensic sciences, dealing with the analysis and interpretation of bloodstain patterns in crime scenes. The aim of BPA is uncovering new informat...

LB03.02: ASSOCIATION BETWEEN PATERNAL CARDIOVASCULAR STATUS AND OFFSPRING ADOLESCENT BLOOD PRESSURE TRAJECTORIES.

To investigate the association between paternal circulatory health in middle age and offspring blood pressure across childhood and adolescence in order to examine the importance of inter-generational ...

Quantitative bloodstain analysis: Differentiation of contact transfer patterns versus spatter patterns on fabric via microscopic inspection.

In crime scene reconstruction, it is often necessary to differentiate "contact transfer" and "spatter" bloodstain patterns found on clothing. Current methodologies, however, are qualitative and prone ...

Metabolomic Analysis of Clinical Plasma from Cerebral Infarction Patients Presenting with Blood Stasis.

Blood stasis (BS) is characterized as a disorder of blood circulation. In traditional Korean medicine (TKM), it is viewed as a cause factor of diseases such as multiple sclerosis and stroke. This stud...

Clinical Trials [3914 Associated Clinical Trials listed on BioPortfolio]

A Dose Ranging Study of CP-690,550 Eye Drops in Patients With Dry Eye Disease

The purpose of the study is to evaluate dose-response, efficacy and safety of CP-690,550 eye drops in patients with dry eye disease.

Delayed-Immediate Breast Reconstruction

The goal of this clinical research study is to evaluate a new two-stage approach (delayed-immediate reconstruction) to breast reconstruction in women who may require post-mastectomy radiat...

Men Undergoing Radical Prostatectomy

The purpose of this study is to see if the protein pattern in your blood can predict whether or not your prostate tumor is aggressive. We will use a new and very sensitive technique, calle...

Regenerative Tissue Matrix for Breast Reconstruction

The purpose of this study is to evaluate the role of Alloderm tissue regenerative matrix used in many breast reconstruction operations. When this material is used in the abdomen it often s...

Secondary Breast Reconstruction With a Flap of Skin From the Back

The purpose of this study is to examine the different outcomes of breast reconstruction in women who are treated for breast cancer with mastectomy and subsequently have delayed breast reco...

Medical and Biotech [MESH] Definitions

Analysis based on the mathematical function first formulated by Jean-Baptiste-Joseph Fourier in 1807. The function, known as the Fourier transform, describes the sinusoidal pattern of any fluctuating pattern in the physical world in terms of its amplitude and its phase. It has broad applications in biomedicine, e.g., analysis of the x-ray crystallography data pivotal in identifying the double helical nature of DNA and in analysis of other molecules, including viruses, and the modified back-projection algorithm universally used in computerized tomography imaging, etc. (From Segen, The Dictionary of Modern Medicine, 1992)

The administration of therapeutic agents drop by drop, as eye drops, ear drops, or nose drops. It is also administered into a body space or cavity through a catheter. It differs from irrigation in that the irrigate is removed within minutes, but the instillate is left in place.

The analysis of a critical number of sensory stimuli or facts (the pattern) by physiological processes such as vision (PATTERN RECOGNITION, VISUAL), touch, or hearing.

Technique of graphic representation of the movements of the body imparted by the ballistic forces (recoil and impact) associated with cardiac contraction and ejection of blood and with the deceleration of blood flow through the large blood vessels. These movements, quantitatively very minute, are translated by a pickup device (transducer) into an electrical potential which is suitably amplified and recorded on a conventional electrocardiograph or other recording machine.

A condition characterized by a reticular or fishnet pattern on the skin of lower extremities and other parts of the body. This red and blue pattern is due to deoxygenated blood in unstable dermal blood vessels. The condition is intensified by cold exposure and relieved by rewarming.


Advertisement
 
Advertisement
 

Searches Linking to this Article