Every DUI case has evidence that must be quickly preserved in order to maximize the results that a DUI attorney can achieve. There is often video evidence of the DUI stop, of the administration of the DUI Field Sobriety/Roadside Tests, of the suspect at the police station, and even of the driving that was the cause of the stop. However, these kinds of evidence are not automatically saved, especially if it does not help the prosecution. For example, a police department will often “write over” or erase the DUI video if it is not quickly preserved by a knowledgeable DUI attorney. Other DUI evidence that needs to be preserved includes “dispatch” records, 911 calls, blood evidence, and more.