Blood Analysis

tulvin type beat

what pattern is this?

swipe

what pattern is this?

void

what pattern is this?

contact transfer

what pattern is this?

medium velocity

what pattern is this?

low velocity

what pattern is this?

high velocity

what pattern is this?

wipe

if blood is sitting on top of the fabric that means…

that the fabric was NOT present at the time blood was flying through the air

what pattern is this

cast off

medium velocity is consistent with what?

blunt force trauma, stabbings, and beatings

high velocity is consistent with?

gunshots and explosions

low velocity is consistent with

blood dripping off weapons, blood dripping off a body part, stepping in blood puddles

what is point of converge

where the center of all blood drops meet, helps determine the origin of the blood

stringing:

3d reconstruction of blood spatter

which method is better for stringing?

Computer, you don’t cross strings or accidentally knock them down

what is luminol used for?

will turn blue in the presence of blood you might not be able to see

definition of compression transfer

object with wet blood is pressed against a surface with no movement

definition of swipe

object comes in contact with a surface and moves

definition of wipe

blood already there and you move something through it