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.
1 However, if the suspects can be narrowed down, their fingerprints can be tested to see which one matches. 2  Blood: Blood is an incriminating type of evidence for various reasons. 3  DNA can be extracted from blood to find a criminal and blood type can be analyzed to help rule out suspects.