MICROANATOMY

Detailed explanation-1: -Increasing velocity of the drop also causes an Increase in the diameter of the spatter in passive drops of blood. Passive drop increases velocity as it falls due to effects of gravity. Velocity increases when drops fall from greater heights, however, patter will not become larger at heights above 7 feet.

Detailed explanation-2: -As the speed of the bleeding source in a horizontal motion is increased, the more elongated shape of the individual stains will result and the distance between bloodstains will be increased in the blood trail.

Detailed explanation-3: -“High velocity” A bloodstain pattern resulting from an object impacting a blood source at 100 feet per second or greater. A typical example is spatter resulting from a gunshot. “Medium velocity” A bloodstain pattern resulting from an object impacting a blood source at roughly 25 feet per second.

Detailed explanation-4: -Blood spatter can help determine the type of weapon because the higher the velocity of the weapon the smaller the blood droplets. For example blood from a gunshot wound sprays out in a fine mist, while a wound caused by being struck with a pipe will cause larger drops.

Detailed explanation-5: -As velocity increases, the blood will impact the target surface more forcefully, the secondary spatter will be more numerous, and the bloodstains may start to become long and spindly. It is possible for bloodstain patterns from falling blood to be confused with projected bloodstain patterns.