LAW OF TORT

TORTS AFFECTING THE PERSON

BATTERY

DEFENCES OF CONSENT, SELF-DEFENCE AND NECESSITY

Written and Compiled By Sir Hunain Zia (AYLOTI), World Record Holder With 154 Total A Grades, 11 World Records and 7 Distinctions, Educate A Change.

INTRODUCTION TO DEFENCES IN BATTERY

General Principle

• Even where all elements of battery are established, the defendant may escape liability by relying on a recognised defence.

• Defences operate as legal justifications for what would otherwise be unlawful physical contact.

• If a defence succeeds:

• Battery is not established.

• Liability is avoided.

• Claim fails.

Main Defences In The CAIE A Level Law Syllabus

Consent (Volenti Non Fit Injuria)

Self-Defence

Necessity

CONSENT

MEANING OF CONSENT

Definition

• Consent means voluntary agreement to the application of force.

• A person who freely agrees to physical contact cannot normally complain that the contact amounted to battery.

Legal Principle

Volenti Non Fit Injuria

Meaning:

“To a willing person, no injury is done.”

Rationale

• The law respects personal autonomy.

• Individuals are free to choose what happens to their bodies.

• Consent transforms what would otherwise be unlawful touching into lawful touching.

REQUIREMENTS OF VALID CONSENT

Requirement 1

Consent Must Be Genuine

• Agreement must be real.

• Consent must actually exist.

Requirement 2

Consent Must Be Voluntary

• No coercion.

• No threats.

• No improper pressure.

Requirement 3

Person Must Have Capacity

• Person must understand nature of act.

• Person must be capable of making decision.

Requirement 4

Consent Must Relate To Particular Conduct

• Consent given for one act does not automatically extend to another.

EXPRESS CONSENT

Meaning

• Consent clearly communicated.

Examples

Verbal Agreement

• “Yes.”

Written Consent

• Medical forms.

Signed Documents

• Participation agreements.

IMPLIED CONSENT

Meaning

• Consent inferred from behaviour.

Examples

Contact Sports

• Rugby.

• Football.

• Boxing.

Everyday Contact

• Crowded trains.

• Buses.

• Queues.

Leading Case

Collins v Wilcock

Principle

• Everyday physical contact is generally impliedly consented to.

Significance

• Leading authority on implied consent.

CONSENT IN SPORTING ACTIVITIES

General Rule

Participants consent to:

• Ordinary physical contact.

• Risks inherent in activity.

Examples

Rugby

• Tackling.

Boxing

• Punching within rules.

Football

• Physical challenges.

Limitation

Consent does not extend to:

• Deliberate violence outside rules.

• Conduct wholly unrelated to sport.

Leading Case

Condon v Basi

Facts

• Football tackle caused serious injury.

Principle

• Players owe duty within context of sport.

Significance

• Important authority concerning sporting consent.

Written and Compiled By Sir Hunain Zia (AYLOTI), World Record Holder With 154 Total A Grades, 11 World Records and 7 Distinctions, Educate A Change.

CONSENT IN MEDICAL TREATMENT

General Rule

• Medical treatment involves physical contact.

• Without consent, treatment may constitute battery.

Importance

• Consent is central to medical law.

LEADING CASE

Chatterton v Gerson

Facts

• Patient underwent operation.

• Claimed inadequate information had been provided.

Decision

• Consent existed.

Principle

• Once patient understands broad nature of treatment and agrees, consent is valid.

Significance

• Leading authority on consent in medical battery.

CONSENT OBTAINED BY FRAUD

General Rule

• Fraud may invalidate consent.

Requirement

Fraud must relate to:

• Nature of act.

or

• Identity of person.

Effect

• Apparent consent becomes ineffective.

LIMITATIONS ON CONSENT

General Rule

The law does not always recognise consent.

Leading Case

R v Brown

Facts

• Participants willingly engaged in sadomasochistic activities.

Decision

• Consent not recognised.

Principle

• Public policy may limit effectiveness of consent.

Significance

• Demonstrates limits of defence.

EFFECT OF SUCCESSFUL CONSENT

Consequence

• Contact becomes lawful.

• Battery claim fails.

Nature

• Complete defence.

SELF-DEFENCE

DEFINITION

Meaning

• Self-defence allows reasonable force to protect oneself, others or property.

Rationale

• Individuals should be permitted to defend themselves against unlawful attacks.

General Rule

Force may be used where:

• Defendant honestly believes force is necessary.

and

• Force used is reasonable.

REQUIREMENT 1

HONEST BELIEF IN NECESSITY

Meaning

• Defendant must honestly believe defensive action is required.

Important Point

• Belief need not be correct.

• It must be honestly held.

Leading Case

Beckford v R

Principle

• Person may use force based on honestly held belief.

Significance

• Important authority.

REQUIREMENT 2

FORCE MUST BE REASONABLE

Meaning

• Force must be proportionate to threat faced.

Court Considers

Seriousness Of Threat

Urgency Of Situation

Available Alternatives

Circumstances Facing Defendant

LEADING CASE

Ashley v Chief Constable of Sussex Police

Principle

• Civil law requires force to be objectively reasonable.

Significance

• Important tort authority.

Examples

Reasonable

• Pushing attacker away.

• Blocking punch.

Unreasonable

• Extreme violence against minor threat.

Effect Of Successful Self-Defence

• Complete defence.

• Battery claim fails.

Written and Compiled By Sir Hunain Zia (AYLOTI), World Record Holder With 154 Total A Grades, 11 World Records and 7 Distinctions, Educate A Change.

DEFENCE OF OTHERS

Extension Of Self-Defence

General Rule

• Reasonable force may be used to protect another person.

Examples

Protecting Family Member

Protecting Friend

Preventing Assault

Requirements

Same requirements apply:

• Honest belief.

• Reasonable force.

DEFENCE OF PROPERTY

General Rule

• Reasonable force may be used to protect property.

Limitation

• Force must remain proportionate.

Examination Point

Protection of property does not justify excessive violence.

NECESSITY

DEFINITION

Meaning

• Necessity allows interference where action is required to prevent greater harm.

Rationale

• The law recognises emergency situations.

• Preservation of life and safety may justify contact.

REQUIREMENTS OF NECESSITY

Requirement 1

Emergency Exists

• Immediate action required.

Requirement 2

Action Necessary

• No reasonable alternative available.

Requirement 3

Action Reasonable

• Response proportionate to danger.

MEDICAL NECESSITY

General Rule

Treatment may be provided without consent where:

• Patient lacks capacity.

• Emergency exists.

• Treatment necessary.

LEADING CASE

Re F (Mental Patient: Sterilisation)

Principle

• Medical treatment may be justified by necessity.

Significance

• Leading authority.

EMERGENCY TREATMENT

Examples

Unconscious Patient

Life-Saving Surgery

Emergency Blood Transfusion

Rule

• Treatment may proceed despite absence of consent.

PUBLIC NECESSITY

General Rule

• Actions necessary to protect public safety may be justified.

Examples

Restraining Dangerous Person

Evacuating Individuals

Emergency Rescue

LIMITATIONS ON NECESSITY

Requirement Of Genuine Emergency

• Mere convenience insufficient.

Requirement Of Proportionality

• Excessive force not permitted.

Requirement Of Good Faith

• Action must genuinely aim to prevent harm.

EFFECT OF SUCCESSFUL NECESSITY

Consequence

• Conduct becomes lawful.

Result

• Battery claim fails.

Nature

• Complete defence.

Written and Compiled By Sir Hunain Zia (AYLOTI), World Record Holder With 154 Total A Grades, 11 World Records and 7 Distinctions, Educate A Change.

COMPARISON OF THE THREE DEFENCES

AO2 APPLICATION

CONSENT

Did Claimant Agree?

Was Consent Genuine?

Was Consent Valid?

SELF-DEFENCE

Was Force Necessary?

Was Belief Honest?

Was Force Reasonable?

NECESSITY

Was There Emergency?

Was Action Necessary?

Was Response Proportionate?

AO3 EVALUATION

CONSENT

Strengths

• Respects autonomy.

Weaknesses

• Difficult questions regarding validity.

SELF-DEFENCE

Strengths

• Protects individuals.

Weaknesses

• Reasonableness difficult to assess.

NECESSITY

Strengths

• Flexible.

• Practical in emergencies.

Weaknesses

• Risk of abuse.

• Emergency threshold sometimes uncertain.

EXAM QUICK REVISION SHEET

CONSENT

Express Consent

Implied Consent

Sporting Consent

Medical Consent

Key Cases

• Collins v Wilcock

• Chatterton v Gerson

• Condon v Basi

• R v Brown

SELF-DEFENCE

Honest Belief

Reasonable Force

Key Cases

• Beckford v R

• Ashley v Chief Constable of Sussex Police

NECESSITY

Emergency

Necessity Of Action

Proportionality

Key Case

• Re F (Mental Patient: Sterilisation)

Examination Formula

Consent

OR

Self-Defence

OR

Necessity

=

Complete Defence To Battery

Written and Compiled By Sir Hunain Zia (AYLOTI), World Record Holder With 154 Total A Grades, 11 World Records and 7 Distinctions, Educate A Change.

Written and Compiled By Sir Hunain Zia (AYLOTI), World Record Holder With 154 Total A Grades, 11 World Records and 7 Distinctions, Educate A Change.

Written and Compiled By Sir Hunain Zia (AYLOTI), World Record Holder With 154 Total A Grades, 11 World Records and 7 Distinctions, Educate A Change.