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A flashpoint in the debate over workplace responses to alcohol and drug use by members of the workforce centres on the chemical testing of current employees and job applicants for alcohol and drug use. Drug testing may be the most contentious issue faced by enterprises struggling to develop fair and effective programmes. to deal with the consequences of substance use in the workplace. The present paper examines scientific evidence on the nature and extent of alcohol and drug use by members of the workforce, evidence linking alcohol and drug use -to workplace problems, workplace strategies for managing ,alcohol- and drug-related difficulties, and arguments for and against drug and alcohol testing. To date, the evidence supportive of alcohol and drug testing is, inconclusive. Testing programmes may be useful in identifying drug users in the workforce. Their deterrent value is uncertain, however, and they are not efficient -tools for linking drug users to assistance programmes. Enterprises that. are contemplating establishing testing programmes should consider:, (a) whether substance use is a problem in their setting; (b) whether testing will respond to the' problem; (c) the costs and benefits of testing; and (d) any ethical and legal questions raised by the programmes.
