In this Aspatore legal title, law enforcement officials nationwide provide an authoritative, insider's perspective on the DUI process. The book takes the reader from the roadside to the courtroom and reveals proven tactics for each step. These experienced authors explain how to collect, protect, and present evidence that will withstand a defense attorney's scrutiny; how to prepare for the courtroom; and how to offer detailed testimony that paints a clear picture for the judge or jury. These authors also analyze current trends in DUI, including stricter penalties, the use of in-car video systems, and the rise in drug-related DUIs.