forensics blood splatter

what is the fastest that free falling blood can travel?

25 feet per second

what is blood splatter?

a technique that seeks to piece together the events that caused bleeding.

what would a blood drop look like if dropped from a 90 degree angle? 45 degree angle?

90= almost perfect circle, 45= it would have a little bit of a tail

what is the relationship between free falling blood and the spatter it creates?

Height from which the blood falls is directly proportional to the diameter of the blood stain

how do you determine the point of convergence?

draw a line through a blood tail and where it intersects is the POC

what is the difference between a spine and a satellite when looking at blood drops?

spine- links poking out the drop like the tail

satellite- the disconnected dots all around the main drop

what would a low, medium, and high velocity blood spatter look like?

low: a large and connected blood stain, medium: a little more disconnected kind of away from each other, high: it would look like a gun shot like mist

what are some presumptive blood tests?

castle meyer, luminol testing, phenolpthalein reaction

what information can a blood drop tell you?

what and where the crime happened, the angle impact

what is the formula to find out the angle of impact

take length and width in CM and do small over big with sin-1

how do you know were the blood was traveling when looking at a blood splatter?

the tail! (the tail tells the tale)

if your blood type is A+ what blood can you give to?

A+, AB+

if your blood type is A+ what blood can you recieve?

A+, A-, O+, O-

if you have O+ what blood can you give to

O+, A+, B+ AB+

if you have O+ what blood can you receive

O+, O-

if you have B+ what blood can you give to

B+, AB+

if you have B+ what blood can you receive from

B+, B-, O+, O-

if you have AB+ you can give blood to

AB+

if you have AB+ you can receive blood from

everyone

if u have A- blood you can give to

A+, A-, AB+, AB-

if u have A- blood you can receive blood from

A-, O-

if u have O- blood you can give blood to

everyone

if you have O- blood you can receive blood from

O-

if you have B- blood you can give to

B+,B-, AB+, AB-

if you have B- blood you can receive from

B-, O-

if you have AB- blood you can give to

AB+, AB-

if you have AB- blood you can receive from

AB-, A-, B-, O-