Volenti and land-specific defences | OCR A-Level Law
For Specification H418
OCR A-Level Law | Free Revision Notes
Estimated study time: 50–60 minutes
This Volenti and land-specific defences A-Level Law revision page brings together the final OCR H418 tort defences. You will learn how volenti non fit injuria operates as a defence based on the claimant's voluntary acceptance of a known risk, then consolidate the defences specific to private nuisance and Rylands v Fletcher. OCR expressly requires students to understand what volenti is and how it operates, alongside the available and unavailable land-specific defences. This builds on contributory negligence [Lesson 138. Contributory negligence].
Learning Objectives 🎯
By the end of this revision page, you should be able to:
Explain the meaning and operation of volenti non fit injuria.
Identify evidence that a claimant knew of and voluntarily accepted a risk.
Apply volenti accurately to tort scenarios.
Distinguish volenti from contributory negligence.
Consolidate the available and unavailable defences to private nuisance.
Consolidate the defences available under Rylands v Fletcher.
Revision Notes 📚
Volenti and land-specific defences A-Level Law revision overview
OCR divides this part of tort law into:
contributory negligence
volenti non fit injuria
defences specific to private nuisance
defences specific to Rylands v Fletcher.
The important examination skill is not simply memorising a long list.
You need to be able to:
identify which tort is involved
identify the defence raised by the facts
explain its requirements
apply the relevant facts
state its legal effect
reach a supported conclusion.
Different torts have different defences, so avoid transferring a defence from one tort into another without justification.
What is volenti non fit injuria?
Volenti non fit injuria is commonly shortened to volenti.
It is a defence based on the claimant having knowingly and voluntarily accepted the relevant risk.
The central questions are:
Did C know about the risk?
Did C voluntarily accept that risk?
If the answer to both is supported by the facts, the defendant may be able to rely on volenti.
OCR expressly requires students to know what volenti is and how it operates.
Volenti is about consent to risk
The core idea is consent.
The claimant does more than merely encounter a danger.
The defendant must be able to argue that the claimant:
appreciated the relevant danger
nevertheless voluntarily accepted the risk associated with it.
For example:
C fully understands that a particular activity carries a specific danger and freely chooses to expose themselves to that danger.
These facts may raise volenti.
Compare:
C does not know that the danger exists.
The defence is much weaker because a person cannot meaningfully accept a risk they do not know about.
Knowledge alone is not necessarily enough
A claimant may know that something is risky without voluntarily consenting to the defendant escaping legal responsibility.
The examination question should therefore be:
Was there both knowledge and voluntary acceptance?
Do not reason:
"C knew it was dangerous, therefore volenti automatically succeeds."
Knowledge is highly relevant, but the facts must also support genuine acceptance of the risk.
Volenti in an OCR negligence scenario
OCR's specimen assessment provides a useful application.
Bilal watched Ahmed use a powerful mower. Bilal owned a similar mower himself and therefore knew about the relevant danger.
OCR's indicative application stated that Ahmed might argue volenti because Bilal had placed himself in known danger.
This provides a useful method.
Step 1: identify the risk
What particular risk caused C's injury?
Step 2: establish knowledge
Did C know about that specific danger?
Relevant evidence may include:
previous experience
specialist knowledge
clear information about the danger
familiarity with the equipment or activity.
Step 3: consider acceptance
Did C voluntarily choose to encounter the known risk?
Step 4: reach a conclusion
Explain whether those facts are strong enough to establish volenti.
📌 Exam technique: Do not simply say that a risk was "obvious". Explain why the claimant personally knew about it and why their conduct indicates voluntary acceptance.
Volenti in occupiers' liability
Volenti can also operate within occupiers' liability.
This connects with the defences already studied under:
lawful visitors [Lesson 122. Defences under the 1957 Act]
trespassers [Lesson 124. Defences under the 1984 Act].
Occupiers' Liability Act 1957
OCR's 2025 mark scheme expressly identifies consent, volenti non fit injuria, under section 2(5) of the Occupiers' Liability Act 1957.
The mark scheme identifies:
White Lion Hotel v James
Burnett v British Waterways Board.
The latter is used to show that volenti may not apply where the visitor had no real choice other than to encounter the risk.
Genuine choice matters
Suppose:
A visitor knows about a danger and freely decides to take the risk when there is no pressure or necessity requiring them to do so.
The facts may support volenti.
Compare:
A person knows about the risk but encounters it because there is effectively no reasonable alternative.
The fact that they knew about the danger does not automatically mean they voluntarily accepted it.
This distinction is important because volenti is based on voluntary assumption, not merely awareness.
Occupiers' Liability Act 1984
Volenti is also recognised under the Occupiers' Liability Act 1984.
OCR's materials identify section 1(6) and Ratcliffe v McConnell in relation to the defence.
This means that even where a duty to a trespasser would otherwise arise, the claimant's voluntary acceptance of the relevant risk may affect liability.
Again, the central issue is not simply:
"C was trespassing."
The issue for volenti is:
Did C knowingly and voluntarily accept the relevant risk?
Volenti versus contributory negligence
This is one of the most important distinctions in the defences topic.
The previous lesson covered contributory negligence [Lesson 138. Contributory negligence].
Contributory negligence
Question:
Did C's own lack of care contribute to their injuries?
Effect:
C's damages may be reduced.
It is a partial defence.
Volenti
Question:
Did C knowingly and voluntarily accept the relevant risk?
The defence is based on consent, not simply carelessness.
Comparison
Contributory negligence | Volenti |
C contributes to their own injuries through their conduct. | C knowingly and voluntarily accepts the relevant risk. |
Focuses on C's lack of care for their own safety. | Focuses on knowledge and consent. |
Partial defence. | A successful volenti argument can defeat liability for the accepted risk. |
Law Reform (Contributory Negligence) Act 1945. | Consent-based common law defence, also recognised expressly in occupiers' liability. |
Example
C knows protective goggles should be worn but fails to wear them.
This may support contributory negligence if the failure contributes to the injury.
It does not automatically prove that C agreed to accept the full risk of D's negligence.
A strong answer considers the requirements separately.
A volenti application checklist
When the facts raise possible consent:
Identify D's alleged tort.
Identify the particular risk which caused C's harm.
Did C know about that risk?
What evidence establishes that knowledge?
Did C voluntarily accept the risk?
Did C have a genuine choice?
Is the situation better analysed as contributory negligence instead?
Reach a supported conclusion.
Do not treat every example of risky behaviour as volenti.
Worked application: known danger
Noah visits a friend's workshop. He regularly uses the same type of machinery in his own business and knows that approaching the machine while it is operating carries a particular danger. Noah is clearly told that the machine is running. He nevertheless freely chooses to approach the dangerous area and is injured by the risk he already understood.
Knowledge
Noah regularly uses the same machinery.
This provides strong evidence that he understands the relevant danger.
Acceptance
He is told the machine is operating but chooses to approach anyway.
There is no suggestion that he is forced or has no alternative.
Conclusion
The facts provide a strong basis for a volenti argument because Noah knowingly and voluntarily encounters the particular risk.
A full answer should still distinguish the defence from contributory negligence if his conduct could also be viewed as careless.
Worked application: knowledge but no real choice
Priya knows that a particular route across premises is dangerous. However, the circumstances mean that she has no genuine alternative but to use that route.
Priya's knowledge is relevant.
However, OCR's 2025 mark scheme identifies Burnett v British Waterways Board for the principle that volenti may not apply where a visitor has no choice other than to enter the dangerous situation.
Conclusion
Knowledge alone is insufficient on these facts.
The lack of genuine voluntary choice substantially weakens the volenti defence.
Land-specific defences
The rest of this lesson consolidates defences connected specifically with:
private nuisance
Rylands v Fletcher.
The detailed rules have already been studied in:
private nuisance defences and remedies [Lesson 128. Private nuisance: defences and remedies]
Rylands v Fletcher defences [Lesson 130. Rylands v Fletcher defences].
This section brings them together so you can select the correct defence in a mixed tort scenario.
Private nuisance defences
Current OCR assessment material identifies two central available defences:
statutory authority
prescription.
It also identifies arguments which are not defences:
coming to the nuisance
social utility or public benefit.
Planning permission alone also does not automatically defeat an actionable private nuisance.
Private nuisance defence 1: statutory authority
Statutory authority can provide a defence where legislation authorises the activity giving rise to the nuisance.
The principal authority identified by OCR is:
Allen v Gulf Oil Refining Co Ltd.
Requirements
Ask:
Is the activity responsible for the nuisance within the scope of the statutory authorisation?
Could the nuisance have been avoided through the use of reasonable care and skill?
OCR's 2024 mark scheme explains that:
statutory authority can defend an otherwise actionable nuisance
it may fail where the nuisance falls outside the authorised activity, Barr v Biffa Waste Services
it may fail where reasonable care and skill could have prevented the nuisance.
Example
Parliament authorises construction of a tunnel using heavy machinery. The authorised tunnelling inevitably creates noise and vibrations affecting neighbouring land.
There may be a strong statutory authority argument because the nuisance arises from the activity expressly authorised.
Private nuisance defence 2: prescription
A defendant may acquire the right to continue an actionable nuisance through prescription.
The important requirement is:
20 years of actionable nuisance
Relevant authorities include:
Sturges v Bridgman
Coventry v Lawrence.
The key phrase is actionable nuisance.
It is not enough that:
"The business has operated for 20 years."
The particular nuisance complained of must have existed as an actionable nuisance for the required period.
Example
A venue has existed for 30 years but began producing actionable late-night noise only five years ago.
Prescription fails because the nuisance itself has existed for only five years.
Private nuisance: coming to the nuisance is not a defence
A defendant might argue:
"C moved next door after the activity had already started."
This is known as coming to the nuisance.
However, OCR's current mark scheme expressly states that this is not a defence, identifying Miller v Jackson.
It may nevertheless be relevant when deciding the appropriate remedy, particularly the choice between damages and an injunction under Coventry v Lawrence.
Do not confuse this with volenti.
Why this distinction matters
The argument:
"C knew there was noise when they moved there, so C consented."
does not automatically create a private nuisance defence.
OCR's 2024 mark scheme expressly discusses attempts to treat coming to the nuisance as effective consent, but confirms that the argument is not a defence.
That makes a useful contrast with genuine volenti, where the legal requirements for voluntary acceptance of risk must actually be established.
Private nuisance: social utility is not a defence
The defendant may argue:
"Our activity benefits the community."
This raises social utility or public benefit.
However, once an actionable private nuisance is established, public benefit is not a defence.
OCR's 2024 mark scheme identifies:
Miller v Jackson
Adams v Ursell.
Public benefit may still affect the court's choice of remedy.
Again, separate:
Liability
from
Remedy.
Private nuisance: planning permission
Planning permission must not be confused with statutory authority.
OCR's 2022 mark scheme states that planning permission does not automatically "trump" an actionable nuisance.
So:
Statutory authority
→ may provide a defence where the legal requirements are satisfied.
Planning permission alone
→ does not automatically provide that defence.
This was already developed in [Lesson 128. Private nuisance: defences and remedies].
Private nuisance summary table
Argument | Defence? | Key authority / principle |
Statutory authority | ✓ | Allen v Gulf Oil Refining Co Ltd |
Prescription | ✓ | Sturges v Bridgman, Coventry v Lawrence |
Coming to the nuisance | ✗ | Miller v Jackson |
Public benefit / social utility | ✗ | Miller v Jackson |
Planning permission alone | ✗ | Coventry v Lawrence |
📌 Exam technique: Private nuisance questions frequently test your ability to recognise a convincing-sounding argument which is not actually a defence.
Rylands v Fletcher defences
OCR's specimen materials identify five available defences to a Rylands v Fletcher claim:
volenti non fit injuria
common benefit
act of God
act of a stranger
damage caused through the claimant's fault.
These were developed fully in Rylands v Fletcher defences [Lesson 130. Rylands v Fletcher defences].
Rylands defence 1: volenti
Volenti is specifically recognised as a Rylands v Fletcher defence.
OCR identifies:
Peters v Prince of Wales Theatre.
The usual volenti reasoning applies.
Ask whether the claimant:
knew about the relevant risk
voluntarily accepted it.
This makes volenti unusual within this lesson because it is both:
a broader tort defence
expressly recognised as a defence to Rylands v Fletcher.
Rylands defence 2: common benefit
The defence of common benefit is supported by:
Dunne v North West Gas Board.
It may apply where the relevant accumulation exists for the shared benefit of the parties.
Do not confuse common benefit with public benefit
This is a common conceptual trap.
Common benefit in Rylands
The relevant arrangement benefits C and D.
Public benefit in private nuisance
The defendant's activity benefits society or the wider community.
The latter is not a private nuisance defence.
The similarity in terminology should not tempt you to merge the doctrines.
Rylands defence 3: act of God
The defence of act of God is associated with:
Nicholls v Marsland.
It concerns an escape caused by an exceptional natural event.
The scenario must actually support the natural event as the cause of the escape.
Do not automatically use the defence whenever bad weather appears in the facts.
Rylands defence 4: act of a stranger
An act of a stranger may provide a defence where the escape is caused by an independent third party outside D's control.
The authority is:
Perry v Kendricks Transport.
OCR's 2025 assessment emphasised that a strong application also considers whether the defendant could have:
anticipated
guarded against
the third-party interference.
The mere fact that another person physically caused the escape does not automatically end the analysis.
Rylands defence 5: claimant's fault
A defendant may rely on damage caused through the claimant's own fault.
The OCR authority is:
Eastern & South African Telegraph v Cape Town Tramways.
Ask whether C's own actions caused the escape or resulting damage.
Example
C deliberately interferes with D's storage container and causes the accumulated substance to escape back onto C's land.
This raises claimant's fault.
It should be distinguished from an act of a stranger, because the person causing the escape is the claimant rather than an independent third party.
Rylands v Fletcher summary table
Defence | Core idea | OCR authority |
Volenti | C knowingly and voluntarily accepts the relevant risk | Peters v Prince of Wales Theatre |
Common benefit | The relevant accumulation exists for the shared benefit of the parties | Dunne v North West Gas Board |
Act of God | An exceptional natural event causes the escape | Nicholls v Marsland |
Act of a stranger | An independent third party outside D's control causes the escape | Perry v Kendricks Transport |
Claimant's fault | C's own conduct causes the damaging event | Eastern & South African Telegraph v Cape Town Tramways |
Comparing the land-specific defences
The quickest way to avoid mixing the rules is to identify the tort first.
Issue | Private nuisance | Rylands v Fletcher |
Statutory authority | ✓ | Not one of the Rylands-specific defences listed by OCR here |
Prescription | ✓ | Not one of the specified Rylands defences |
Coming to nuisance | ✗ Not a defence | Not the relevant Rylands rule |
Social utility/public benefit | ✗ Not a defence | Do not confuse with common benefit |
Planning permission alone | ✗ | Not the relevant Rylands rule |
Volenti | Not identified as a private nuisance-specific defence in the current OCR nuisance list | ✓ |
Common benefit | ✗ | ✓ |
Act of God | ✗ as a nuisance-specific defence | ✓ |
Act of stranger | ✗ as a nuisance-specific defence | ✓ |
Claimant's fault | Not part of the private nuisance-specific list | ✓ |
The selection rule
Private nuisance
Think:
statutory authority or prescription.
Then recognise:
coming to nuisance, public benefit and planning permission alone do not provide the claimed defence.
Rylands v Fletcher
Think:
volenti, common benefit, act of God, act of stranger or claimant's fault.
A defence identification method
When the facts contain a possible defence, look for these triggers.
"An Act of Parliament authorises the activity"
→ Private nuisance: statutory authority
"The nuisance has existed continuously for more than 20 years"
→ Private nuisance: prescription
"C only moved there recently"
→ Private nuisance: coming to nuisance
But remember:
not a defence
"The activity benefits thousands of local residents"
→ Private nuisance: social utility
But remember:
not a defence
"Planning permission was granted"
→ Do not automatically treat this as statutory authority.
"C knew about the danger and freely accepted it"
→ Volenti
"The arrangement benefited both C and D"
→ Rylands: common benefit
"An exceptional natural event caused the escape"
→ Rylands: act of God
"An independent third party caused the escape"
→ Rylands: act of stranger
"C caused the escape"
→ Rylands: claimant's fault
Mixed worked application
Consider the following scenarios. Assume the relevant tort has already been established in each case.
Scenario A: statutory tunnel construction
RailCore Ltd is authorised by legislation to build an underground railway using heavy machinery. The authorised tunnelling inevitably creates an actionable private nuisance through noise and vibrations.
This raises statutory authority.
The nuisance arises directly from the activity authorised by legislation.
Under Allen v Gulf Oil Refining Co Ltd, RailCore has a strong defence, provided the nuisance falls within the scope of the authorisation and could not have been avoided through reasonable care and skill.
Scenario B: long-established business
Adventure Park Ltd has operated on the site for 35 years. However, the particular late-night activity constituting an actionable nuisance began only seven years ago.
The facts raise prescription.
The site has operated for more than 20 years, but that is not enough.
Under Coventry v Lawrence, the actionable nuisance itself must satisfy the required period.
The defence fails because the relevant nuisance has existed for only seven years.
Scenario C: new neighbour
Zoe buys a house beside an activity which has already been established as an actionable private nuisance. D argues that Zoe knew about the activity when she moved in.
The facts raise coming to the nuisance.
Under Miller v Jackson, this is not a defence.
Zoe's arrival after the nuisance began does not prevent the claim.
However, the fact may have relevance later when the court considers remedies.
Scenario D: public benefit
A local sports centre creates an actionable nuisance but provides facilities to thousands of local residents.
The social value of the centre does not provide a defence.
Public benefit may affect remedies, but it does not remove liability.
Scenario E: third-party escape
D has established all the requirements of a potential Rylands claim. An unknown trespasser breaks into D's secure property and deliberately opens the storage tank. There has never previously been any interference.
The facts raise act of a stranger.
Under Perry v Kendricks Transport:
the trespasser is independent
the trespasser is outside D's control
there was no history suggesting that D should anticipate the act
the property was secured.
The defence is therefore likely to succeed.
Scenario F: claimant causes the escape
C deliberately enters D's property and opens the valve on the accumulated substance. It escapes onto C's own neighbouring land.
This raises claimant's fault, supported by Eastern & South African Telegraph v Cape Town Tramways.
C's own actions directly cause the damaging escape.
D therefore has a strong defence.
A complete defence structure for tort scenarios
When faced with a tort problem:
Step 1: establish the tort
Do not begin with defences unless the question tells you liability has already been established.
Step 2: identify factual triggers
Do not recite every defence you know.
Step 3: state the precise rule
For example:
Prescription requires 20 years of actionable nuisance.
Step 4: apply the facts
For example:
Although the business has existed for 26 years, the actionable noise began only six years ago.
Step 5: distinguish false defences
For private nuisance in particular, ask whether the argument is actually:
coming to nuisance
social utility
planning permission.
Step 6: explain the effect
If a complete defence succeeds, D may avoid liability.
If the issue is contributory negligence, remember that this operates differently as a partial defence.
Step 7: reach a supported conclusion
Use:
The defence is likely/unlikely to succeed because...
rather than simply:
D has a defence.
Defences and remedies are separate
Do not confuse a failed defence with an irrelevant fact.
For example:
Coming to the nuisance
does not defeat a private nuisance claim
but may affect remedies.
Public benefit
does not defeat liability
but may affect remedies.
This becomes important as you move into:
compensatory damages [Lesson 140. Compensatory damages]
and later:
tort remedies problem solving [Lesson 143. Tort remedies problem solving].
Key Words 🔑
Key word | Student-friendly definition | How it may be used in an exam |
Volenti non fit injuria | A defence based on the claimant knowingly and voluntarily accepting the relevant risk. | Identify evidence of knowledge, genuine choice and voluntary acceptance. |
Statutory authority | A private nuisance defence where legislation authorises the activity responsible for the nuisance, subject to its limits. | Apply Allen v Gulf Oil Refining Co Ltd. |
Prescription | A private nuisance defence requiring the actionable nuisance to have continued for at least 20 years. | Apply Sturges v Bridgman and Coventry v Lawrence. |
Act of a stranger | A Rylands defence where an independent third party outside D's control causes the escape. | Apply Perry v Kendricks Transport and consider whether D could anticipate or guard against the act. |
Common benefit | A Rylands defence relating to an accumulation existing for the shared benefit of the parties. | Apply Dunne v North West Gas Board and distinguish it from public benefit in nuisance. |
Hints from the Examiner Reports 💡
Examiner hint: Select only the defence raised by the facts. OCR repeatedly warns against the "write everything you know" approach because irrelevant AO1 leads to irrelevant AO2 and wastes examination time.
Examiner hint: Explain the rule before applying it. OCR's 2023 guidance states that stronger responses explain legal principles rather than simply naming a case or defence.
Examiner hint: Link a precise legal principle to a precise fact. Strong AO2 identifies the factual trigger, applies the relevant rule and then reaches a reasoned conclusion.
Examiner hint: Do not mix concepts from different torts. OCR's 2022 report specifically warned about candidates merging doctrines from different areas of tort law rather than selecting the rules relevant to the claim being considered.
Examiner hint: Be particularly careful with private nuisance. Current OCR materials distinguish genuine defences such as statutory authority and prescription from convincing-sounding arguments such as coming to the nuisance and public benefit, which are not defences.
Examiner hint: Follow exclusions in the question. If a question expressly says not to consider defences, adding volenti or land-specific defences will not gain credit. OCR's 2023 Rylands report specifically noted that defences ruled out by the question could not receive marks.
Common Mistakes ⚠️
Mistake: Treating knowledge of a risk as automatically proving volenti
Why this is incorrect: Volenti is based on voluntary acceptance of the risk, not knowledge alone.
How to improve: Apply two separate ideas:
Did C know about the risk?
Did C voluntarily accept it?
Mistake: Treating careless behaviour as consent
Why this is incorrect: Carelessness may support contributory negligence without establishing volenti.
How to improve: Ask whether the facts genuinely show acceptance of the relevant risk. If C merely failed to take reasonable care, use contributory negligence [Lesson 138. Contributory negligence].
Mistake: Ignoring whether C had a genuine choice
Why this is incorrect: A person who has no genuine alternative may not have voluntarily assumed the risk.
How to improve: Use Burnett v British Waterways Board where the facts suggest the claimant had no real choice.
Mistake: Calling coming to the nuisance a defence
Why this is incorrect: OCR's current mark scheme expressly states that coming to the nuisance is not a private nuisance defence.
How to improve: Use Miller v Jackson and explain that the fact may instead influence remedies.
Mistake: Treating public benefit as a private nuisance defence
Why this is incorrect: An activity can remain an actionable nuisance even if it provides considerable social value.
How to improve: State that public benefit may affect remedies but does not defeat liability.
Mistake: Confusing planning permission with statutory authority
Why this is incorrect: Planning permission does not automatically override an actionable nuisance.
How to improve: Look for actual legislative authority before applying Allen v Gulf Oil Refining Co Ltd.
Mistake: Counting the age of the business rather than the age of the nuisance
Why this is incorrect: Prescription requires at least 20 years of the actionable nuisance itself.
How to improve: Create a timeline and use Coventry v Lawrence.
Mistake: Confusing common benefit with public benefit
Why this is incorrect: Common benefit is a recognised Rylands defence involving shared benefit between the relevant parties. Public benefit is not a defence to private nuisance.
How to improve: Identify precisely who benefits from the activity.
Mistake: Assuming an act of a stranger automatically succeeds
Why this is incorrect: OCR's recent Rylands assessment shows that the defendant may still need to consider whether the interference could have been anticipated or guarded against.
How to improve: Apply the third party's independence, D's control and the surrounding circumstances before reaching a conclusion.
Exam-Style Questions ✍️
Question 1
Explain what is meant by volenti non fit injuria. [3 marks]
Question 2
Explain why knowledge of a danger does not necessarily establish volenti. [4 marks]
Question 3
Explain the difference between volenti and contributory negligence. [6 marks]
Question 4
Identify the two principal available defences to private nuisance and explain one requirement of each. [6 marks]
Question 5
Explain why the following are not defences to an established private nuisance:
coming to the nuisance
social utility or public benefit.
[6 marks]
Question 6
Identify four defences available under Rylands v Fletcher. [4 marks]
Question 7
A claimant knows that specialised machinery creates a particular risk because they regularly operate identical machinery themselves. They are told that the machinery is operating but freely choose to enter the dangerous area and are injured by the risk they understood.
Advise whether the defendant may be able to rely on volenti. [8 marks]
Question 8
Assume an actionable private nuisance has been established in each situation.
A. Legislation expressly authorises the activity responsible for the nuisance.
B. A business has operated for 28 years, but the activity constituting the actionable nuisance began nine years ago.
C. The claimant moved to the property three years after the nuisance began.
D. The defendant's activity provides a major benefit to the local community.
Advise each defendant whether the facts disclose an available defence. [12 marks]
Question 9
Assume the requirements of Rylands v Fletcher have been established in each situation.
A. C knew about and voluntarily accepted the relevant risk.
B. The accumulated thing was kept under an arrangement benefiting both C and D.
C. An exceptional natural event caused the escape.
D. An independent stranger caused the escape in circumstances D could not reasonably have anticipated.
E. C personally interfered with the accumulated thing and caused it to escape.
Advise each defendant whether a defence may be available. [15 marks]
Question 10
An actionable private nuisance has been established against Westside Sports Ltd. The company argues that:
Parliament authorised a separate development on its land, although the legislation does not authorise the noisy sports activity causing the nuisance
it has owned the site for 32 years, although the actionable nighttime noise began six years ago
the claimant bought the neighbouring house after the noise began
the sports centre is used by thousands of local people.
In a separate incident, assume Westside has satisfied the requirements for potential liability under Rylands v Fletcher after an accumulated chemical escapes from its land. The escape occurred after an unknown person entered the property and deliberately opened the storage container. Westside had experienced repeated unauthorised entry during the previous month but had taken no additional security measures.
Advise Westside Sports Ltd on the relevant land-specific defences. [20 marks]
Indicative answers and mark scheme
Question 1
Award up to 3 marks for explaining that:
volenti is a defence based on consent
C must know about the relevant risk
C must voluntarily accept that risk.
Question 2
Award up to 4 marks for explaining that:
knowledge is relevant but does not necessarily establish voluntary acceptance
C must genuinely choose to accept the relevant risk
circumstances showing that C had no real choice may defeat the argument
Burnett v British Waterways Board may be used appropriately.
Question 3
Award up to 6 marks for explaining that:
Volenti
concerns knowledge and voluntary acceptance of the relevant risk
is based on consent.
Contributory negligence
concerns C contributing to their own injuries through their conduct
is a partial defence
reduces damages under the Law Reform (Contributory Negligence) Act 1945.
A strong answer will explain that careless behaviour does not automatically establish voluntary consent.
Question 4
Award up to 6 marks for:
Statutory authority
legislation authorises the activity responsible for the nuisance
Allen v Gulf Oil Refining Co Ltd
the nuisance must fall within the authorised activity
reasonable care and skill remains relevant.
Prescription
the actionable nuisance must have continued for at least 20 years
Sturges v Bridgman
Coventry v Lawrence.
Question 5
Award up to 6 marks for explaining that:
Coming to nuisance
means C arrives after the nuisance already exists
it is not a defence
Miller v Jackson
it may influence remedies.
Public benefit
the activity may be socially useful
this does not defeat an established nuisance
public benefit may nevertheless influence remedies
Miller v Jackson or Adams v Ursell may be used.
Question 6
Award 1 mark each, up to 4 marks, for any four of:
volenti
common benefit
act of God
act of a stranger
claimant's fault.
Relevant authorities may be credited where supplied accurately.
Question 7
A strong response should explain:
Knowledge
The claimant regularly operates identical machinery.
This strongly suggests that they appreciate the particular risk.
They are also expressly told that the machinery is operating.
Voluntary acceptance
The claimant nevertheless freely chooses to enter the dangerous area.
There is no indication that they are compelled to enter or lack an alternative.
Conclusion
The facts provide a strong argument that C both knew about and voluntarily accepted the relevant risk.
The defendant therefore has a strong potential volenti defence.
A high-quality answer should make clear that this conclusion depends on genuine acceptance rather than merely on the claimant behaving carelessly.
Question 8
A strong answer should apply the private nuisance rules separately.
A. Statutory authority
The facts raise statutory authority.
If the legislation actually authorises the activity responsible for the nuisance and the nuisance could not be prevented through reasonable care and skill, the defence may succeed under Allen v Gulf Oil Refining Co Ltd.
B. Prescription
The business has operated for 28 years, but the actionable nuisance has existed for only nine.
Under Coventry v Lawrence, the relevant period concerns the nuisance itself.
The 20-year requirement is not satisfied.
Conclusion: Prescription fails.
C. Coming to the nuisance
The claimant moved to the property after the nuisance began.
Under Miller v Jackson, coming to the nuisance is not a defence.
It may nevertheless be relevant to remedies.
D. Public benefit
The activity benefits the community.
Public benefit or social utility does not defeat an established private nuisance.
It may affect the choice of remedy.
Question 9
A strong answer should identify:
A. Volenti
C knowingly and voluntarily accepts the relevant risk.
Peters v Prince of Wales Theatre is the OCR authority for volenti in Rylands.
B. Common benefit
The arrangement benefits both parties.
This raises common benefit, supported by Dunne v North West Gas Board.
C. Act of God
The escape is caused by an exceptional natural event.
This raises act of God, supported by Nicholls v Marsland.
D. Act of a stranger
An independent person outside D's control causes the escape.
The facts also state that D could not reasonably have anticipated the incident.
This strongly supports act of a stranger under Perry v Kendricks Transport.
E. Claimant's fault
C personally causes the escape.
This raises the defence of damage caused through the claimant's fault, supported by Eastern & South African Telegraph v Cape Town Tramways.
Question 10
A high-level answer should separate the private nuisance and Rylands v Fletcher issues.
Private nuisance
Statutory authority
Statutory authority may defend an otherwise actionable private nuisance under Allen v Gulf Oil Refining Co Ltd.
However, the legislation in this scenario authorises a different development.
It does not authorise the noisy sports activity creating the nuisance.
OCR's current approach recognises that statutory authority will not protect conduct falling outside the scope of the authorised activity.
Conclusion: Westside is unlikely to succeed with statutory authority.
Prescription
Prescription requires at least 20 years of actionable nuisance.
Although Westside has owned the site for 32 years, the nighttime noise became actionable only six years ago.
Under Coventry v Lawrence, it is the actionable nuisance, rather than the defendant's general presence on the land, which must satisfy the 20-year period.
Conclusion: Prescription fails.
Coming to the nuisance
The claimant bought the neighbouring house after the noise began.
This raises coming to the nuisance.
Under Miller v Jackson, it is not a defence.
It may affect the appropriate remedy but does not defeat the established liability.
Public benefit
Thousands of local people use the sports centre.
This raises social utility or public benefit.
Again, this is not a defence to established private nuisance.
It may be relevant to the choice between remedies, but Westside cannot use the popularity of the centre to remove liability.
Rylands v Fletcher
The separate chemical escape raises act of a stranger.
The person who opens the storage container is:
an independent third party
apparently outside Westside's control.
This initially supports the defence under Perry v Kendricks Transport.
However, the facts state that Westside had experienced repeated unauthorised entry during the previous month.
Westside knew about those incidents but took no additional security measures.
This significantly weakens the defence because further interference may have been something the company could anticipate and guard against.
OCR's recent Rylands material specifically recognises that act of a stranger can fail where the circumstances suggest the defendant could have taken precautions against third-party interference.
Overall conclusion
Westside is unlikely to establish any of the suggested private nuisance defences:
the legislation does not authorise the nuisance complained of
six years is insufficient for prescription
coming to the nuisance is not a defence
public benefit is not a defence.
Its Rylands v Fletcher act-of-a-stranger argument is also relatively weak because repeated earlier trespass gave Westside reason to anticipate further interference and consider additional precautions.
The scenario therefore illustrates why a strong tort answer must identify the specific defence belonging to the relevant tort, apply its requirements and distinguish genuine defences from arguments which merely sound persuasive.
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