And what if the same contamination matches? I will have to pay for a lawyer to dispute the evidence. Will the public defender routinely use an independent lab

And what if the same contamination matches? I will have to pay for a lawyer to dispute the evidence. Will the public defender routinely use an independent lab? Also, Alabama applies it to arrestees for felonies--effectively any drug charge. That means "Arresting officer smelled weed" gets your DNA scooped even if you are later found innocent.