You're listening to live courtroom coverage of the trial of Karen Reed from the Hidden

Killers podcast and True Crime Today. Now, back to the courtroom.

Is the position of this arm relative to the SUV consistent or inconsistent with the original

spot that the surrogate in the paint test was standing as it related to the

SUV it's it's consistent we lined it up so it's consistent with that original uh location so that it would

not impact the the elbow or the upper arm so at that position if there's impact to the arm at 15 miles an hour, it doesn't

cause the tail light to fracture. And it's also important to look at the kinematics. If you look

at the acceleration data below, that hand and arm is accelerated, the hands accelerated up to the speed of the vehicle in about 2 to 4 milliseconds.

How long does it take to blink your eye?

250 milliseconds. It takes a quarter of a second to blink your eye. So this occurs.

If your hands hit at 15 miles an hour by a car it's going to be accelerated up to the

speed of the car about 50 times faster than you can blink can we go the next slide please

and what are we looking at in this so this is lab testing at 17 miles an hour so the the housing and the cover was basically propelled into the

forearm of the dummy at 17 miles an hour. What was the acceleration that was noted on the arm?

So when you look at the arm, the acceleration here is almost 300 Gs. What does that mean to us? So, you know, 300 G's, if you, if you look at

weight, if you say the weight of the arm is 10 pounds, 300 Gs means there's 3,000 pounds of force

acting on that arm. Is that enough to break a bone? It's more than enough to break a bone.

Is that enough to fracture, I'm sorry, to tear ligaments?

Absolutely, yes.

What about the bones in the hand?

Are those stronger or the same resistance as the bones in the forearm or they more delicate?

No, the bones in the hand are, as you can imagine, much weaker because they're much smaller.

...