or video recording possibly? depends hugely on the judge/corruptness of the court/state. some courts throw out cases based on pure testimony because of the lack of documented evidence in situations like this one. this is usually why cops will make you do sobriety tests, it is used to validate and document the fact that someone is too intoxicated to drive. these actions are usually also recorded, and presented as evidence to the district attorney. a good lawyer can get you out of this situation, especially if its just speculation from the officer. the more evidence they have on you, the harder it is to prove your innocence, and vise-versa. either way, lawyer up!