The practitioner confronted for the first time with the task of representing a client who has been accused of using a controlled substance where the only evidence of the alleged use id scientific testing of the client's urine has a somewhat challenging task ahead.
Waple, Mark L.
"Drug Tests: Issues Raised in the Defense of a "Positive" Result,"
Nova Law Review: Vol. 11
, Article 16.
Available at: http://nsuworks.nova.edu/nlr/vol11/iss2/16