However, in resting horses, a heart rate over 80 can be a sign of a serious problem. If a calm horse has a pulse that is consistently over 60, it can also be a problem. Things that can increase the horse's heart rate include exercise, fear, pain, stress, and excitement.
Because blood analysis is a comparison analysis (comparison of the victim's blood and the suspect's blood to blood found at the crime scene), reference blood samples are needed from the victim and suspect. A comparison must be made between the genetic markers in the victim s blood and the suspect's blood.
In all of. these tests it is important to ensure that the chemical reactions do not prevent later tests. being done to help to identify who the blood belongs to. INTRODUCTION. Forensic scientists are often asked to determine, both in the field and in the laboratory, whether a particular stain is or is not blood.