Validity of Bloodstain Patterns Called into Question

Judges and juries are often swayed by what they think is the scientific reliability of the so-called "forensic sciences" such as analysis of handwriting, fingerprints, hair, bite marks, and blood spatter patterns. No wonder. It can be very impressive when people who claim to be experts in forensic science fields testify as to their conclusions about evidence that supposedly links an accused suspect to a crime. However, while some evidence (such as from DNA) can be extremely accurate, there are limitations to many areas of forensic science, and tools such as bloodstain patterns can be flawed. In fact, appeals due to...