Can law enforcement officers perform a roadside drug check point ?

We have all heard of and maybe even been apart of the random D.U.I. checkpoints or license checks while driving.
So is it legal for a cop or cops to do a drug check point?
Update: HINT~~~ No it is not!!!!
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Update 3: Check Your Rights ( a great web site for Americans to check out!) Drug Checkpoint Ahead? Relax and Keep Driving Why? Because there isn’t exactly such a thing as a drug checkpoint. In City of Indianapolis v. Edmond, the Supreme Court found random drug checkpoints unconstitutional in 2000. Since then, police... show more Check Your Rights ( a great web site for Americans to check out!)

Drug Checkpoint Ahead? Relax and Keep Driving

Why? Because there isn’t exactly such a thing as a drug checkpoint. In City of Indianapolis v. Edmond, the Supreme Court found random drug checkpoints unconstitutional in 2000. Since then, police (particularly in the mid-west) have gotten into the habit of putting signs up warning drivers of upcoming drug checkpoints and then detaining and searching drivers who make illegal u-turns or desperately fling contraband from their vehicles. These checkpoint-like fake checkpoints serve as the functional equivalent of a checkpoint without violating the Court’s prohibition against checkpoints.
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If you see a "drug checkpoint" sign in your area, please contact me at scott@flexyourrights.org.
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