Bloodstain pattern analysis (BPA) is the interpretation of bloodstains at a crime scene in order to recreate the actions that caused the bloodshed. Analysts examine the size, shape, distribution and …

(Courtesy of NFSTC) Bloodstain pattern analysis (BPA) is the interpretation of bloodstains at a crime scene in order to recreate the actions that caused the bloodshed. Analysts examine the size, shape, …

Analysis involves assessing a print to determine if it can be used for a comparison. If the print is not suitable for comparison because of inadequate quality or quantity of features, the examination ends …

With subsequent refinement of DNA analysis methods in crime laboratories, even minute amounts of blood, saliva, semen, skin cells or other biological material may be used to develop investigative …

In reality, there is currently no automated method for matching tread patterns. The patterns must be meticulously photographed and documented, then compared manually using computer databases …

A broken window, a blood spatter pattern, bullet paths and shoe prints can all reveal what actually happened. This type of evidence answers the question, “How did it happen?”

In this discussion, photographs are not evidence in and of themselves, but provide visual documentation of the scene and locations of evidence within the scene. Photographs taken at a crime scene allow …