Ohio’s DUI laws (called ‘OVI’ in Ohio) criminalize driving with a prohibited breath alcohol concentration. To determine whether a person has a prohibited breath alcohol concentration, law enforcement officers use breath-testing machines. If a person refuses a breath test, there are consequences. However, differences in height, age, gender, and smoking habits make some people physically unable to provide a sufficient breath sample. As a result, some people are accused of refusing a breath test when they didn’t.
Technological devices are used to measure both speed and breath alcohol concentration. In court, the results of those devices are introduced to prove defendants are guilty of speeding or DUI (called ‘OVI’ in Ohio). As the government has the burden of proving a defendant’s guilt, one would expect the government would have the obligation to prove the measurement device produced an accurate result. A recent decision of the Ohio Supreme Court permits judges and juries to presume the measurement devices are accurate.