A new study by economists at the University of Colorado Denver and Montana State University reveals that so-called “per se” drugged driving laws have no discernible impact on traffic fatalities. Per se laws set thresholds for controlled substances above which drivers are considered impaired.
(PRWeb January 14, 2013)
Read the full story at http://www.prweb.com/releases/2013/1/prweb10323294.htm
