An occupier of premises owes varying degrees of duty toward persons who come onto that property, historically calibrated according to the specific category the visitor fell into, a category based approach that has gradually given way to more unified, reasonableness centred standards in modern law.
Legal Framework
| Category | Traditional Duty Owed |
|---|---|
| Invitee | Highest duty: occupier must exercise reasonable care to prevent damage from unusual dangers of which the occupier knew or ought to have known |
| Licensee | Duty to warn of concealed dangers known to the occupier |
| Trespasser | Historically minimal duty, not to intentionally or recklessly injure; modern law imposes a duty of "common humanity" |
The Traditional Three Category Approach
Invitee. A person who enters premises with the occupier's express or implied invitation, and for a purpose in which the occupier has some material interest (such as a customer entering a shop). The occupier owes an invitee the duty to take reasonable care to prevent damage from any unusual danger that the occupier knew, or ought to have known, existed.
Indermaur v Dames (1866): This case established the foundational duty owed to an invitee, requiring the occupier to use reasonable care to prevent damage from unusual danger known to the occupier, or which they ought to have known of through reasonable diligence.
Why invitees received this higher standard of protection: Since the invitee's presence typically serves some purpose beneficial to the occupier (commercial or otherwise), the occupier, deriving this benefit from the invitee's presence, was considered to owe a correspondingly higher standard of care for their safety while on the premises for this mutually beneficial purpose.
Licensee. A person who enters with the occupier's permission, but without any material benefit accruing to the occupier from that presence (a social guest, for instance). The occupier's duty toward a licensee was traditionally more limited: simply to warn of concealed dangers actually known to the occupier, without the more extensive obligation to actively discover unusual dangers that applied for an invitee.
Trespasser. A person present on the premises without any permission whatsoever, express or implied. Historically, the occupier owed a trespasser only the most minimal duty: not to intentionally or recklessly injure them, without any broader duty of care regarding ordinary dangers on the premises.
Why this category based approach developed and persisted for so long: It reflected an underlying philosophy calibrating the occupier's duty according to the specific nature and legitimacy of the visitor's presence, and, correspondingly, according to how much the occupier could reasonably be expected to anticipate and prepare for that specific category of person being present; a trespasser, being present without any legitimate expectation or invitation, was considered to warrant a lesser degree of protective obligation than someone the occupier had actually invited or permitted onto the premises.
Modern Development: Toward a More Unified Duty and Greater Protection for Trespassers
Modern common law development, both through judicial decisions and subsequent statutory reform in various jurisdictions, has moved toward unifying the duty owed to invitees and licensees into a single "common duty of care" owed to all lawful visitors, recognising that the historical distinction between these two categories often proved artificial and difficult to apply consistently in practice, and toward substantially increasing the minimal protection historically afforded to trespassers.
British Railways Board v Herrington (1972): The House of Lords significantly developed the law regarding duties owed to trespassers, holding that an occupier owes a trespasser a duty of "common humanity," requiring the occupier to take reasonable steps, having regard to their own knowledge of the danger and the trespasser's likely presence, to protect against a danger that the occupier knows exists and that is likely to cause serious injury to a trespasser whose presence the occupier should reasonably anticipate.
Why the House of Lords moved to increase this historically minimal protection for trespassers: The Court recognised that treating trespassers as entitled to essentially no protective duty whatsoever, particularly where the occupier had actual knowledge of a serious danger and could reasonably anticipate a trespasser's presence (as with children trespassing onto premises containing an obviously dangerous, attractive hazard), produced results increasingly viewed as unacceptably harsh and inconsistent with basic, minimal standards of humane conduct that even the presence of unlawful trespass should not entirely eliminate; the "common humanity" standard represents a modest but meaningful step beyond the historical, near total absence of duty, without imposing the full, more demanding standard of care owed to lawful visitors.
Illustrations
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Invitee, unusual danger known to occupier: A customer entering a shop slips on a spill that shop staff were aware of but failed to clean up or warn customers about. Applying the Indermaur v Dames standard, since this constitutes an unusual danger the occupier knew of, and the customer is an invitee (present for a purpose benefiting the shop commercially), the shop owes a duty of reasonable care to prevent this harm, and its failure to address the known spill likely constitutes a breach of this duty.
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Licensee, concealed danger not warned of: A social guest visiting a friend's home is injured when they step on a hidden structural defect in the flooring that the homeowner was aware of but never mentioned to the guest. Since the guest is a licensee (present with permission but for a purpose not materially benefiting the homeowner), the homeowner's duty was to warn of this concealed danger they actually knew about, and their failure to do so likely constitutes a breach of this more limited licensee-specific duty.
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Trespasser, common humanity standard, Herrington principle: A property owner is aware that children frequently trespass through a gap in fencing onto their land, which contains a dangerous, unguarded piece of abandoned machinery highly likely to seriously injure a child who encounters it. Applying British Railways Board v Herrington, given the owner's actual knowledge of both the danger and the likely trespassing presence of children, a duty of common humanity requires the owner to take reasonable steps (such as repairing the fence or securing the machinery) to protect against this specific, known, serious risk, even though the children are trespassers rather than lawful visitors.
Recall Check
- Why did the traditional approach calibrate the occupier's duty according to the visitor's specific category (invitee, licensee, trespasser)?
- What duty did Indermaur v Dames establish specifically for invitees, and why did invitees receive this higher standard?
- Why did British Railways Board v Herrington move to increase the historically minimal protection afforded to trespassers?
Key Cases
Indermaur v. Dames (1866) Indermaur-v-Dames-1866 Issue: What standard of care an occupier owes to an invitee present on their premises for a purpose benefiting the occupier. Rule: The occupier must use reasonable care to prevent damage from any unusual danger they knew, or ought to have known, existed. Held: The court established this foundational invitee duty standard, historically the highest level of protection among the traditional categories.
British Railways Board v. Herrington (1972) British-Railways-Board-v-Herrington-1972 Issue: What duty, if any, an occupier owes to a trespasser whose presence the occupier could reasonably anticipate, regarding a known, serious danger. Rule: The occupier owes a trespasser a duty of "common humanity," requiring reasonable steps to protect against a known danger likely to cause serious injury to a reasonably anticipated trespasser. Held: The House of Lords established this increased, though still more limited, protective standard for trespassers.
Distinctions
| Basis | Invitee | Licensee | Trespasser |
|---|---|---|---|
| Basis of presence | Invitation, with benefit to occupier | Permission, without material benefit to occupier | No permission whatsoever |
| Traditional duty owed | Reasonable care regarding unusual dangers known or reasonably discoverable | Warn of concealed dangers actually known | Minimal; not to intentionally or recklessly injure (modernly, "common humanity") |
| Key case | Indermaur v Dames | (Traditional common law categories) | British Railways Board v Herrington |
Flashcards
Q: What duty does an occupier traditionally owe to an invitee, per Indermaur v Dames? A: Reasonable care to prevent damage from unusual dangers the occupier knew or ought to have known about.
Q: What is the traditional duty owed to a licensee? A: To warn of concealed dangers actually known to the occupier.
Q: What was the historical duty owed to a trespasser, before Herrington? A: A minimal duty, not to intentionally or recklessly injure them.
Q: What duty did British Railways Board v Herrington establish for trespassers? A: A duty of "common humanity," requiring reasonable steps to protect against a known danger likely to cause serious injury to a reasonably anticipated trespasser.
Q: What modern trend has occurred regarding the duties owed to invitees and licensees? A: A move toward unifying these into a single "common duty of care" owed to lawful visitors generally.
Exam Scenario
A factory owner is aware that a section of their perimeter fence is broken, and that local children have been observed using this gap to trespass onto the factory grounds to play, which contains a disused, deep water tank with no covering or warning signage, posing an obvious serious drowning risk to any child who might fall in. Assess the factory owner's duty, if any, toward these child trespassers, applying the relevant modern standard.
Approach: Apply the British Railways Board v Herrington "common humanity" standard directly, given the close factual parallel: the factory owner has actual knowledge of both the specific danger (the uncovered water tank posing a serious risk) and the likely trespassing presence of children through the known fence gap. Applying this standard, the owner is required to take reasonable steps, given this actual knowledge of both the danger and the anticipated trespasser presence, to protect against this known, serious risk, such as repairing the fence, covering the tank, or erecting adequate warning signage. Advise that the factory owner's failure to take any such reasonable protective steps, despite this actual knowledge, likely constitutes a breach of the common humanity duty Herrington establishes, exposing the owner to liability if a child is subsequently injured or drowns in this known, unaddressed hazard.
See Also
- Rule of Absolute Liability M C Mehta : the contrasting, far more demanding liability standard applicable to inherently hazardous industrial activities, illustrating the spectrum of duty standards tort law applies depending on the specific relationship and activity involved.