Testing for substance abuse in the workplace has drawn fire for decades. Unions and civil libertarians have been particularly vehement, arguing that it is invasive and violates the rights of the individual (Note:  Urine and blood tests use metabolites to determine whether a controlled substance is present; critics point out that metabolites can remain in the body for weeks and are an imperfect measure of a worker's ability to perform his duties).

In the form of SafetyScan, VisioNetx has squarely addressed this problem.  Entirely non-invasive, the device uses an individual’s own eye-signs  (Note:  Alcohol and drugs affect eye movements and have discernible signatures) to determine whether he or she is able to perform their duties (Note:  Only a supervisor can  determine what, if any, action should  be taken).

Safety Scan promises to revolutionize testing in the workplace, lowering operation costs and boosting productivity and worker satisfaction.