Columbus OVI/DUI Attorney Blog
When a driver is prosecuted for operating a vehicle under the influence of drugs (called ‘OVI’ in Ohio), what evidence is sufficient to sustain a conviction? The prosecution must prove the defendant operated a vehicle under the influence of a drug of abuse. That requires the prosecution to prove the defendant was impaired while operating the vehicle, identify the specific drug which was ingested, and link the drug’s ingestion to the defendant’s impairment.
What is Sufficient Proof of Drugged Driving in Ohio?
When a person uses marijuana, the high from the THC last for about two hours, but the THC metabolites are detectable in the person’s urine for up to five weeks. Suppose a person smokes marijuana and a week later is pulled over and investigated for DUI (called ‘OVI’ in Ohio). If that person submits a urine sample and the urine test shows a prohibited level of marijuana metabolite, that person will be prosecuted for OVI because it is ‘per se’ illegal to operate a vehicle with a prohibited concentration of marijuana metabolites, even if the person’s driving is not impaired. Challenges to this ‘per se’ OVI law have been unsuccessful in Ohio courts. A recent case from the Ohio Supreme Court suggests the Court may be inclined to evaluate the constitutionality of the OVI ‘per se’ law for drugs.
Most states now have some form of legalized marijuana. Thirty-four states (as well as D.C., Guam and Puerto Rico) have medical marijuana programs, and ten states permit recreational marijuana use. The states with recreational marijuana have questioned whether marijuana legalization results in more traffic accidents. According to a recent 
The ever-growing number of states which have legalized either medical marijuana or recreational marijuana has created a number of issues for law enforcement and the justice system. Chief among those issues is the challenge of enforcing laws against operating a vehicle under the influence of marijuana. In an effort to overcome this challenge, the Norwegian company Drauger developed the DrugTest 5000. This system uses a mouth swab, taken roadside, to help determine if a driver is under the influence of marijuana or other drugs. The DrugTest 5000 has been in use in Norway since 2015 and has seen 
