Stripe patterns are commonly seen in nature—for instance, birds and fish move in coordinated flocks and schools, fingerprints ...

Human blood already comes in a bewildering variety of types, but researchers have now identified a new one so rare that only ...

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, ...

FRESNO, Calif. (KSE E /KGPE) – Ever wondered how blood is used to solve crimes? Local community members gathered at the Betty Rodriguez Library in Fresno on Monday to get a look into the world of ...

The National Institute of Justice gave more than $1 million to the state Bureau of Criminal Apprehension to study handwriting characteristics and bloodstain patterns, the BCA said Monday. These two ...

A new study has found that we are still far from understanding the blood classification system – and more blood types are ahead of us.

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 ...

Red blood cells are complex — there's much more to blood types than A, B and O. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Many people know ...

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 ...