A prosecution under s 23(1) of the Occupational Health and Safety Act 2004 (Vic) must adduce sufficient evidence of the nature and extent of the alleged risk to health and safety, and cannot define the risk by reference to the absence of the proposed measure. Where an employer operates in a regulated environment conferring rights on non-employees (such as aged care residents' rights to freedom of movement), a proposed reasonably practicable measure must be assessed against those rights, and a 'one size fits all' measure may not be reasonably practicable. The prosecution must also adduce evidence that the proposed measure would in fact eliminate or reduce the risk, not merely assume its effectiveness.
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