Sobriety Checkpoints?

Last weekend I went out with the boys for a few beers. One topic that came up in conversation was the use of sobriety checkpoints. Two of us, including myself came from an area where these were seen on a regular basis, especially on weekends. In case you don’t know what sobriety checkpoints are, our friends at Wikipedia do a nice job describing it:

“Sobriety checkpoints or roadblocks involve law enforcement officials stopping every vehicle (or more typically, every nth vehicle) on a public roadway and investigating the possibility that the driver might be too impaired to drive. They are often set up late at night or in the very early morning hours and on weekends, at which time the proportion of impaired drivers tends to be the highest. Checkpoints are also often set near the exit points of public events, to prevent large numbers of drunk drivers from being released into traffic simultaneously from the event.”