Law enforcement officials throughout the nation are prohibited from making arbitrary arrests and subjecting individuals to searches and interrogations that are unfounded and without cause. In order to make an arrest for an alleged crime like DUI, they must collect evidence of their suspect's purported wrongdoing so that there are sufficient grounds on which to allege they have broken the law. In Virginia and other jurisdictions law enforcement officials use field sobriety tests and a means of getting evidence of drivers' suspected intoxication.
The Commonwealth of Virginia and the other states of the nation have outlawed drunk driving in an effort to prevent vehicle accidents and collision fatalities. These are noble goals and there is no doubt that alcohol is an intoxicating substance that can alter a person's faculties. However, the rigid laws that Virginia and other jurisdictions apply in drunk driving cases take away any subjective considerations that may affect a person's rights when arrested for DUI.