The provision and use of safety equipment (such as belt clamps) constitutes an 'arrangement' for maintenance within s 9(1)(e) of the Mines Safety and Inspection Act 1994 (WA), rather than maintenance itself. A failure to make arrangements for safe maintenance properly includes a failure to give instructions to use available safety equipment. Proposed amendments to particulars that would widen the prosecution case to require the defendant to face a substantially different case may properly be refused as a matter of discretion, even where the amendment would not technically create a different offence.
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