THE INVESTIGATOR SHOULD NOT MAKE HASTY CONCLUSIONS FROM BLOODSTAIN APPEARANCE. GREAT CARE MUST ALWAYS BE EXERCISED IN TRYING TO APPROXIMATE THE HEIGHT OR VELOCITY OF BLOOD DROPS. IN GENERAL, THE JAGGEDNESS OF THE EDGE OF THE DROP INCREASES AS THE ROUGHNESS OF THE SURFACE IT STRIKES INCREASES, BUT THERE IS NO SURE FORMULA AVAILABLE.
IN CONCLUSION, THE MATERIAL UPON WHICH BLOODSTAINS RESTS MAY ALTER THE ORIGINAL SHAPE OF THE DROP AS IT STRIKES, AND BODILY MOVEMENTS ACTUALLY MAY CAUSE BLOOD TO BE THROWN IN THE DIRECTION OPPOSITE THAT OF THE ACTUAL TRAVEL OF THE INDIVIDUAL.
CAUTION SHOULD BE USED AGAINST MAKING INTERPRETATIONS OF BLOOD FLIGHT PATTERNS WITHOUT SUFFICIENT EXPERIENCE. THERE ARE EXPERTS WHOSE ENTIRE CAREERS HAVE BEEN DEVOTED TO THE INTERPRETATION OF BLOOD FLIGHT CHARACTERISTICS.