What are Drunk-driving checkpoints?

Question

do you support this strategy

Answer 1

They stop cars in a selected stretch of road to see if the driver has been drinking.

Sure, I support it. Why not?  

Answer 2

Officers set up and randomly check drivers to see if they are intoxicated.

The argument supporting this strategy is to be proactive, and stop the driver before they create a dangerous situation where someone could be injured.

The argument against it is that it is a violation of your Fourth Amendment rights, as the detention is viewd as an illegal seizure without probable cause. They are not allowed in many states because of this.

Answer 3

Spots where the police set up and check drivers for alcohol use.  Sometimes they stop every driver, sometimes every fourth driver, etc. and yes, I certainly do support it.