The largest-ever black-box study on the accuracy of bloodstain pattern analysis (BPA), a widely used forensic technique, has found concerning error rates and ...

Anyone who’s a fan of TV police procedurals and true crime knows that many cases hinge on blood pattern evidence. That’s nothing new. The first documented use of bloodstain pattern analysis, or BPA, ...

In general, bloodstain pattern analysis (BPA) refers to the collection and subsequent forensic analysis investigation of the size, shape, and distribution patterns of bloodstains found at a crime ...

A timeline of a niche, unproven discipline that gained a hold in the American justice system. A timeline of a niche, unproven discipline that gained a hold in the American justice system. By LEORA ...

ProPublica is a nonprofit newsroom that investigates abuses of power. Sign up to receive our biggest stories as soon as they’re published. This article is a partnership between ProPublica, where ...

David Camm lost 13 years of his life to eight drops of blood. In 2000, the Indiana state trooper was charged with murder after finding his wife and two children shot to death in their home. During the ...

A crime scene investigator who has worked more than 3,000 deaths uses his own blood on social media to teach the world how to approach the job. Jeffrey Gentry, 40, is a certified bloodstain pattern ...

New findings by state forensic experts have indicated that the bloodstain pattern analysis that was instrumental in convicting a former high school principal in Texas of murdering his wife in 1985 was ...

The work of North Carolina’s bloodstain pattern analysis program doesn’t have the stamp of approval from a national accrediting group, and the man taking over the State Bureau of Investigation wants ...

Bloodstain Pattern Analysis (BPA) is an interdisciplinary forensic technique that utilises principles of fluid dynamics and high-resolution imaging to reconstruct the events of a crime. The approach ...