A ruling by a southwest Missouri judge could have an impact on how the State is able to prosecute drug-impaired drivers. Greene County Circuit Judge Calvin Holden has ruled that police trained as drug recognition experts are not qualified to offer an expert opinion as to whether a driver was impaired by drugs. Attorney General Jay Nixon couldn’t disagree more. That’s why Nixon is giving the Greene County prosecutor all the help needed to get an appeals court to overturn this ruling. The Attorney General says he’s even ready to take it to the state supreme court to preserve the drug recognition officer program. Approximately 120 police are trained as DRE officers right now.