Drug Testing as a Condition of Receiving Federal Benefits

"The Supreme Court, on a number of occasions, has held that government-administered drug tests are searches under the Fourth Amendment.14 Therefore, the constitutionality of a law that requires an individual to pass a drug test before he may receive federal benefits likely will turn on whether the drug test is reasonable under the circumstances."

Source: 

Carpenter, David H., "Constitutional Analysis of Suspicionless Drug Testing Requirements for the Receipt of Governmental Benefits," Congressional Research Service (Washington, DC: Library of Congress, January 19, 2012), p. 2.
http://www.fas.org/sgp/crs/mis...

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