A landlord of commercial premises does not need to be shown to have knowledge of a 'dangerous defect' before a duty of care to entrants can arise; the duty is governed by ordinary negligence principles of foreseeable risk and reasonable response, informed by the terms of the lease. However, where the lease places repair obligations on the tenant and gives the landlord only a right (not obligation) to enter and repair, and where the damage was caused by the tenant's activities, the landlord's duty to the tenant's employees will be narrow and will require actual or constructive knowledge of a foreseeable risk of injury.
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