The Oldtimer
Older than dirt!!
And what if OJ's cheek swab didn't match the DNA at the crime scene?A cheek swab is just as accurate as a blood test when it comes to DNA. The reason they take it in DUI cases is because of the blood test is more accurate.
They might take a blood test but there really wouldn't be any reason to.
And part of the reason that they wouldn't' screw up the evidence in today's age like they did in the OJ trial? The entire playbook and rules for how to handle evidence is taken from that and other botched trials.
It would take a 1 in a 1000 case blunder to screw up the OJ trial in today' age even with his fancy lawyers.