Quoting data from Drug Info Australia, the article states that the losses suffered by Australian businesses from lost productivity due to drug and alcohol abuse is pegged at $6 billion a year. It also says that about half of the Australian workforce drinks at levels that are harmful.
When a worker is under the influence of alcohol, their capacity to fulfill their duties in the workplace is significantly diminished. Worse, alcohol intoxication also makes an employee more prone to workplace accidents, which are going to cost employers more in workers compensation, and if the worker decides to file suit, litigation costs, with or without a workplace alcohol policy in place.
Read the full article here.