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A group of bloodstain analysts recognized the need for a coordinated effort to develop themselves and the emerging field of bloodstain pattern analysis. Of the 23 people present at the meeting moderated by Deborah J. Wakida, 22 became Charter Members. Only Douglas Ridolfi of the Los Angeles County Sheriff's Department declined to join.
Bloodstain pattern analysis has been used informally for centuries, but the first modern study of blood stains was in 1895. Dr. Eduard Piotrowski of the University of Kraków published a paper titled "On the formation, form, direction, and spreading of blood stains after blunt trauma to the head."
The Scientific Working Group on Bloodstain Pattern Analysis (SWGSTAIN) was created in March 2002 at a meeting held by the FBI Laboratory at the FBI Academy in Quantico, Virginia. It was decided that there was enough interest in bloodstain pattern analysis (BPA) to warrant the creation of the Scientific Working Group (SWG).
Bloodstain pattern analysis is the scientific examination of blood spatter patterns found at a crime scene to reconstruct the events of the crime. Comparative forensics is the application of visual comparison techniques to verify similarity of physical evidence. This includes fingerprint analysis, toolmark analysis, and ballistic analysis.
Using photos from a bloodshed incident at a crime scene, a bloodstain pattern analyst can use HemoSpat to calculate the area-of-origin of impact patterns. This information may be useful for determining position and posture of suspects and victims, sequencing of events, corroborating or refuting testimony, and for crime scene reconstruction .
Blood stains are an important part of forensic statistics, as the analysis of blood drop collisions may help to picture the event that had previously gone on. Commonly blood stains are an elliptical shape, because of this blood stains are usually easy to determine the blood droplets angle through the formula “α = arcsin d/a”. In this ...
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The International Association for Identification (IAI) is the largest forensic organization in the world. It was originally formed as the "International Association for Criminal Identification" in October 1915.