I know in New Zealand, you've got the right to redo tests with whoever you want (i.e. private labs).
So, if the prosecution has said that your DNA was found at the scene or something, you can then get that test done privately (yes it'll cost money) to see if it matches up. You can do this as many times, with as many labs as you need.
Is this a normal thing in the US too? I'm assuming it is. If my assumption is correct, then wouldn't another lab doing the same test come to a different conclusion?
It's not that expensive. About $500 NZD for a basic test. Yes, expensive if you don't have $500 but there's many ways to go about it: ask for invoice, get legal aid to pay, do it through lawyer (who adds to their bill), hope you still have family who loves you or friends.
Alternatively, you can make the court do it to rule out any problems. Most of the time the labs come up with the same result but the courts are more than happy to make sure it's about water tight.
So, if the prosecution has said that your DNA was found at the scene or something, you can then get that test done privately (yes it'll cost money) to see if it matches up. You can do this as many times, with as many labs as you need.
Is this a normal thing in the US too? I'm assuming it is. If my assumption is correct, then wouldn't another lab doing the same test come to a different conclusion?