DUI cases (called ‘OVI’ in Ohio) are some of the most complicated cases filed in Ohio courts. From field sobriety tests to breath/blood/urine tests, there are many minute and highly technical details that can make or break an OVI defense in court. Often, a seemingly simple but no less important detail can get lost under the mountain of specialized evidence in OVI cases: why did the person get pulled over in the first place? And, more importantly for OVI defense: what degree of evidence does the prosecution need to present to justify that traffic stop?