angle of impact | angle that blood droplets hit a surface |
arterial gushing | the large pattern of blood that is created when blood escapes an artery under pressure; the increase and decrease in blood pressure is apparent |
clot | mass of blood and other contaminants |
cast off stains | blood that has been thrown from a secondary object onto a target other then the impact site |
drop patterns | characteristic patterns present when blood drips into standing, wet blood |
expiratory blood | blood which is spattered onto a target, as a result of breathing; typically, this occurs when an injury is sustained to the throat, mouch or airway. |
impact site | usually the point on the bodythet received the blow or applied force, from which the blood is shed. |
origin | the point in space where blood spattered from |
parent drop | the droplet from which satellite spatter originated |
projected blood | blood under pressure that strikes a target |
satellite spatters | small drops of blood that break off from the parent spatter when the parent droplet strikes a target surface |
shadowing/ghosting/void | a pattern that helps to place an object or body in the scene; normally, the area in question lacks blood even though areas surrounding it show blood |
skeletonized stain | the pattern left when an object moves through a partially dryed stain, removing part of the blood, but leaving the outline of the stain intact. |
spatter | bloodstains created from the application of force or energy to the area where the blood is |
spines | the pointed edges of a stain that radiate out of a spatter |
splash | pattern created when a volume of blood in excess of 1mL strikes a surface at a low to medium velocity |
swipe | the transfer of blood onto a target surface by a bloody object that is usually moving laterally |
transfer pattern | the pattern created when a wet bloody object comes in contact with a target surface, leaving a pattern that has the features of the object, making it useful for identifying the object |
target | the surface where the blood ends up |
wipe | pattern transferred when a secondary target moves through an existing wet blood stain on some other object |
