18. The operator of a place to which this chapter or a regulation made under the fourth paragraph of section 16 applies must not tolerate a person smoking cannabis in an area where cannabis smoking is prohibited.
An operator who contravenes the first paragraph commits an offence and is liable to a fine of $500 to $12,500. Those amounts are doubled for a subsequent offence.
In penal proceedings for such a contravention, evidence that a person was smoking in an area where smoking is prohibited is sufficient to establish that the operator tolerated a person doing so in that area, unless it is established that the operator exercised due diligence and took all necessary precautions to prevent the offence.