EXPERTS ON CRIMINAL behavior point out that consequences tend to affect people's behavior only if they are swift and certain. As it stands, only a tiny percentage of drunk drivers are unlucky enough to be stopped and arrested. People have good reason to believe that, no matter how high the penalties for drunk driving, they are not likely to be caught and therefore do not need to change their behavior. For this reason, some propose that lawenforcement efforts should concentrate on stopping and arresting more of those who drive drunk rather than increasing the penalties.

Discouraging drinking and driving through roadblocks

One method of law enforcement that is now being used more frequently to discourage people from drinking and driving is the roadblock. North Carolina's impressive roadblock campaign is the reason why, according to reporter Matthew Wald: "North Carolina is...