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.
DNA is generally used to solve crimes in one of two ways. In cases where a suspect is identified, a sample of that personâs DNA can be compared to evidence from the crime scene. The results of this comparison may help establish whether the suspect committed the crime.