Drug and alcohol testing does not improve workplace safety, so why have it?

cover of EN455_NCETA_2011-2 Testing for drug and alcohol effects in workplaces sounds sensible but what do you do when there is no evidence that it improves worker safety or reduces risk? Apparently ignore the evidence, create industrial tension and impose unnecessary costs on industry.

The Australian national government and the Victorian (State) government have both pledged to introduce drug and alcohol testing for the construction sector.  The Victorian Government also promised to introduce drug and alcohol testing for parliamentarians but everyone expects a backdown on that election pledge.

Recently two researchers in Adelaide, Ken Pidd and Anne Roche published a research paper in Accident Analysis & Prevention asking “how effective is drug testing as a workplace safety strategy?“.  The abstract states:

“…the evidence base for the effectiveness of testing in improving workplace safety is at best tenuous.”

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