I heard a report that Geno Smith, quarterback for the Seattle Seahawks, was stopped for speeding and arrested on suspicion of DUI (called ‘OVI’ in Ohio). My first thought was, “speeding doesn’t sound like evidence of DUI”. It turns out Smith was allegedly going 96 mph in a 60 mph zone and driving erratically across several lanes of traffic (according to ESPN). That sounds more like evidence of DUI. Geno Smith’s case prompts the question: “what evidence, before a stop, indicates a driver may be under the influence?”