Section 2 of the Occupiers Liability Act 1957 states that an occupier owes the same duty of care to all visitors, except where the duty is extended, restricted, modified, or excluded by agreement
The common duty of care is to ensure that the visitor will be reasonably safe in using the premises for the purposes for which they are invited or permitted by the occupier
Roles v Nathan (1963): Two chimney sweeps died from carbon-monoxide poisoning while repairing a coke-fired boiler. The occupier was not liable as men in their trade should have known of the danger and how to deal with it
Salmon v Seafarer Restaurants (1983): The owner of a chip shop leaving a fryer on all night was held liable for injury to a firefighter, as firefighters still face risks even if they exercise all the skill of their calling
Independent Contractors: Liability can be passed on to contractors if it was reasonable to contract the work out, the occupier ensured the contractor was competent, and checked that the work was properly done
Haseldine v Daw (1941): The claimant was injured in a lift accident, and the landlord was not liable as it was reasonable to contract out the complex engineering work
Gwilliam v West Hertfordshire Hospitals NHS Trust (2002): Enquiring into a contractor's competency extends to inspecting the contractor's resources to cover negligence, such as their insurance certificate
Trespassers: Occupiers owe a lower duty of care to trespassers, but should make reasonable efforts to make them safe if aware of a danger on the premises
Occupiers' Liability Act 1984: Determines the duty owed by an occupier of premises to persons other than visitors in respect of any risk of injury on the premises