A-Level Edexcel Law: Quick Reference Formula & Theorem Handbook | A-Level Edexcel 法律：公式定理速查手册

📚 A-Level Edexcel Law: Quick Reference Formula & Theorem Handbook | A-Level Edexcel 法律：公式定理速查手册

This handbook distills the key legal tests, principles, and ‘formulae’ required for Edexcel A-Level Law. Each section presents a legal rule as a structured formula, accompanied by essential case authorities. Use this as a rapid revision tool to memorise the core doctrines in criminal law, tort, contract, and human rights.

本手册提炼了 Edexcel A-Level 法律所需的关键法律测试、原则和“公式”。每个部分将法律规则以结构化公式呈现，并附有重要判例依据。将其用作快速复习工具，以记忆刑法、侵权法、合同法和人权法中的核心理论。

1. Murder Actus Reus & Mens Rea | 谋杀罪：犯罪行为与犯罪意图

Formula: AR = Unlawful killing of a human being under the Queen’s peace, with causation (factual & legal). MR = Intention to kill or cause grievous bodily harm (GBH).

公式：犯罪行为 = 在女王治下非法杀害人类，且具有因果关系（事实与法律）。犯罪意图 = 意图杀人或造成严重身体伤害。

Factual causation: ‘But for’ test (R v White). Legal causation: Operating and substantial cause (R v Smith), thin skull rule (R v Blaue).

事实因果关系：“若无则不”检验标准（怀特案）。法律因果关系：有效和实质性原因（史密斯案），蛋壳脑袋规则（布劳案）。

MR is satisfied by direct intent (R v Mohan) or oblique intent: jury may find intention if death/GBH was a virtual certainty and defendant appreciated that (R v Woollin).

犯罪意图可由直接故意（莫汉案）或间接故意满足：若死亡/严重身体伤害是几乎必然的后果且被告意识到这一点，陪审团可认定意图（伍林案）。

2. Voluntary Manslaughter: Diminished Responsibility & Loss of Control | 自愿非预谋杀人：减轻责任与失控

Formula for Diminished Responsibility (s.2 Homicide Act 1957 as amended by s.52 Coroners and Justice Act 2009): D must prove (1) abnormality of mental functioning, (2) arising from a recognised medical condition, (3) which substantially impaired D’s ability to (a) understand the nature of conduct, (b) form a rational judgment, or (c) exercise self-control, (4) providing an explanation for the killing.

减轻责任公式（1957年《杀人法》第2条，经2009年《验尸官与司法法》第52条修订）：被告须证明（1）精神功能异常；（2）由公认的医疗状况引起；（3）实质上削弱了被告(a)理解行为性质、(b)形成理性判断或(c)行使自我控制的能力；（4）为杀人提供了解释。

Loss of Control (s.54-55 Coroners and Justice Act 2009): (1) D’s acts resulted from loss of self-control, (2) loss had a qualifying trigger (fear of serious violence / things said/done of extremely grave character causing justifiable sense of being seriously wronged; sexual infidelity alone excluded), (3) a person of D’s sex and age with normal tolerance might have reacted similarly.

失控公式（2009年《验尸官与司法法》第54-55条）：（1）被告的行为源于失控；（2）失控有适格触发事由（对严重暴力的恐惧/所说所做具有极其严重性质，使被告产生被严重伤害的正当感；仅性不忠本身被排除）；（3）与被告同性别、同年龄且具有正常容忍度的人可能会有类似反应。

3. Non-Fatal Offences: Assault & Battery | 非致命犯罪：威胁与殴打

Formula for Assault: AR = Causing victim to apprehend immediate unlawful personal violence. MR = Intention or recklessness as to causing such apprehension (R v Ireland).

威胁公式：犯罪行为 = 使被害人担忧即将面临非法人身暴力。犯罪意图 = 故意或轻率地造成此种担忧（爱尔兰案）。

Formula for Battery: AR = Infliction of unlawful personal force. MR = Intention or recklessness as to the infliction of such force. Touching need not be hostile (Collins v Wilcock).

殴打公式：犯罪行为 = 施加非法人身力量。犯罪意图 = 故意或轻率地施加此种力量。接触无需具有敌意（柯林斯诉威尔科克案）。

For ABH (s.47 OAPA 1861): AR = Assault or battery occasioning actual bodily harm. MR = Same as for assault/battery (R v Roberts). Harm includes psychiatric injury but not mere emotion (R v Chan-Fook).

实际身体伤害（1861年《侵害人身罪法》第47条）：犯罪行为 = 威胁或殴打导致实际身体伤害。犯罪意图 = 与威胁/殴打相同（罗伯茨案）。伤害包括精神伤害但不包括单纯情绪（钱福克案）。

4. Theft: The Five-Part Formula | 盗窃罪：五部分公式

Formula under s.1 Theft Act 1968: (1) Appropriation (s.3) – assumption of owner’s rights (R v Morris); (2) Property (s.4) – money, real/personal property, things in action, intangible property; (3) Belonging to another (s.5) – possession, control, or proprietary interest (R v Turner); (4) Dishonesty (s.2) – Ivey test: what D knew, and would ordinary decent people regard conduct as dishonest? (Ivey v Genting Casinos); (5) Intention to permanently deprive (s.6) – treating the thing as one’s own (R v Lloyd).

1968年《盗窃法》第1条公式：（1）占有（第3条）— 行使所有人的权利（莫里斯案）；（2）财产（第4条）— 金钱、不动产/动产、诉体财产、无形财产；（3）属于他人（第5条）— 占有、控制或所有权利益（特纳案）；（4）不诚实（第2条）— 艾维测试：被告所知的事实，普通正派人士是否会认为行为不诚实？（艾维诉云顶赌场案）；（5）意图永久剥夺（第6条）— 将物品视为己有（劳埃德案）。

Robbery (s.8) = Theft + force/putting in fear of force immediately before or at the time of stealing. Burglary (s.9) = Entry of building + as a trespasser + with MR for theft/GBH/unlawful damage.

抢劫（第8条）= 盗窃 + 盗窃之前或当时立即使用武力或使被害人恐惧武力。入室盗窃（第9条）= 侵入建筑物 + 作为侵入者 + 具有盗窃/严重身体伤害/非法毁坏意图。

5. Contract Formation: Offer, Acceptance, Consideration | 合同成立：要约、承诺、对价

Formula: Valid contract requires (1) offer (distinguished from invitation to treat – Fisher v Bell), (2) acceptance (mirror image rule, communicated – Entores v Miles Far East), (3) consideration (benefit/detriment – Currie v Misa), (4) intention to create legal relations (social/domestic presumed not, commercial presumed yes – Balfour v Balfour, Esso Petroleum v CCE).

公式：有效合同需要（1）要约（区别于要约邀请—费舍尔诉贝尔案）；（2）承诺（镜像规则，需沟通传达—恩托里斯诉迈尔斯远东案）；（3）对价（利益/损害—柯里诉米萨案）；（4）设立法律关系的意图（社会/家庭关系推定无，商业关系推定有—巴尔弗诉巴尔弗案，埃索石油诉海关案）。

Consideration must be sufficient but need not be adequate. Past consideration is not good (Re McArdle), unless requested and with implied promise (Lampleigh v Braithwait). Part payment of debt not satisfaction (Pinnel’s Case), exceptions: promissory estoppel (Central London Property Trust v High Trees House).

对价必须充分但不必相当。既往对价无效（麦卡德尔案），除非应对方要求且有默示承诺（兰普利诉布雷斯韦特案）。部分还款不能抵销债务（平内尔案），例外：允诺禁反言（伦敦中央财产信托诉高树房屋案）。

6. Contract Terms & Exclusion Clauses | 合同条款与免责条款

Formula for incorporation: Clause must be incorporated by signature (L’Estrange v Graucob), reasonable notice (Parker v SE Railway), or previous consistent dealing (Hollier v Rambler Motors).

纳入公式：条款须通过签名（莱斯特兰奇诉格劳科布案）、合理通知（帕克诉东南铁路案）或先前一贯交易（霍利尔诉漫步者汽车案）纳入。

Unfair Contract Terms Act 1977 formula: For negligence liability, exclusion cannot exclude death/personal injury; for other loss, must satisfy reasonableness. In consumer contracts, Consumer Rights Act 2015 fairness test applies.

1977年《不公平合同条款法》公式：对于过失责任，免责条款不能排除死亡/人身损害；对其他损失，必须满足合理性要求。消费者合同适用2015年《消费者权益法》公平性测试。

Exclusion subject	Unerasable	Subject to reasonableness
Death/personal injury from negligence	Yes	N/A
Other loss/damage from negligence	No	Yes
Breach of implied terms (SOGA)	No	Yes

7. Negligence: Duty, Breach, Damage | 过失侵权：义务、违反、损害

Formula: Claimant must establish (1) duty of care (Caparo three-part test: foreseeability of damage, proximity, fair, just and reasonable), (2) breach (reasonable person standard – Blyth v Birmingham Waterworks), (3) causation (factual: but for – Barnett v Chelsea & Kensington; legal: remoteness – The Wagon Mound).

公式：原告须证明（1）注意义务（卡帕罗三部分测试：损害可预见性、近邻性、公平公正合理）；（2）违反（合理人标准—布莱斯诉伯明翰水务案）；（3）因果关系（事实：若无则不—巴奈特诉切尔西及肯辛顿案；法律：损害的遥远性—马车墩案）。

For breach: set standard against reasonable person, consider special characteristics (child: Mullin v Richards; skilled: Bolam/Bolitho). Risk factors: probability of harm (Bolton v Stone), seriousness, cost of prevention, social utility.

违反：以合理人为标准，考虑特殊特征（儿童：穆林诉理查兹案；专业人士：博勒姆/博利索案）。风险因素：损害概率（博尔顿诉斯通案）、严重性、预防成本、社会效用。

8. Occupiers’ Liability & Nuisance | 占用人责任与妨害侵权

Occupiers’ Liability Act 1957 formula: Owed to lawful visitors. Duty: take reasonable care to see visitor reasonably safe for purpose of visit (s.2(2)). Children expected to be less careful (s.2(3)(a) – Glasgow Corp v Taylor). Skilled visitors may guard against special risks (s.2(3)(b) – Roles v Nathan). Discharge by warnings (s.2(4)(a)).

1957年《占用人责任法》公式：对合法访客负有义务。义务：采取合理注意确保访客为访问目的而合理地安全（第2(2)条）。儿童可期待较少注意（第2(3)(a)条—格拉斯哥公司诉泰勒案）。有技能的访客可防范特殊风险（第2(3)(b)条—罗尔斯诉内森案）。通过警告免除义务（第2(4)(a)条）。

Private nuisance formula: Indirect interference with land enjoyment, unreasonable user (balance factors: locality, duration, malice, sensitivity – St Helen’s Smelting v Tipping). Only claimants with interest in land can sue (Hunter v Canary Wharf).

私人妨害公式：对土地享用的间接干扰；不合理使用（平衡因素：地点、持续时间、恶意、敏感性—圣海伦冶炼公司诉蒂平案）。仅有土地权益的原告可起诉（亨特诉金丝雀码头案）。

9. Strict Liability & Vicarious Liability | 严格责任与替代责任

Strict liability formula: Offence requires AR only, no MR (except if statute implies). Typically regulatory offences, but may have due diligence defence (e.g., s.24 Trade Descriptions Act). Key case: Callow v Tillstone, Alphacell v Woodward. Apply Gammon test for HL presumption of MR: true crimes presumed to require MR unless clear statutory exclusion; strict liability more likely for regulatory, public safety, social concern matters.

严格责任公式：犯罪仅需犯罪行为，无需犯罪意图（除非法规默示）。通常为监管性犯罪，但可能有尽职辩护（如《商品说明法》第24条）。关键判例：卡洛诉蒂尔斯通案，阿尔法塞尔诉伍德沃德案。适用加蒙测试判断上议院对犯罪意图的推定：真正犯罪推定需要犯罪意图，除非法规明确排除；监管、公共安全、社会关切事项更可能为严格责任。

Vicarious liability formula: Employer liable for torts of employee committed in course of employment (close connection test – Lister v Hesley Hall). Must be employer-employee relationship, not independent contractor. Unauthorised acts can still be within ‘course’ if closely connected to authorised act (Mohamud v Morrisons).

替代责任公式：雇主对雇员在雇佣过程中实施的侵权行为负责（密切关联测试—利斯特诉赫斯利庄院案）。须为雇主-雇员关系，非独立承包商。未经授权的行为若与授权行为有密切关联，仍属“雇佣过程”内（穆罕默德诉莫里森案）。

10. Human Rights & Judicial Review | 人权与司法审查

Judicial review grounds (CCSU case): Illegality (acting beyond powers – AG v Fulham Corp), Irrationality / Wednesbury unreasonableness, Procedural impropriety (breach of natural justice: right to fair hearing, rule against bias).

司法审查理由（CCSU案）：违法性（越权行为—检察总长诉富勒姆公司案）；不合理性/温斯伯里不合理；程序不当（违反自然正义：公平听证权、反偏见规则）。

Human Rights Act 1998 s.3-4 formula: Courts must read legislation compatibly with ECHR rights ‘so far as possible’ (s.3). If not possible, make declaration of incompatibility (s.4). S.6: public authorities must act compatibly; if they violate, victim may claim under s.7.

1998年《人权法》第3-4条公式：法院须“尽可能”以符合《欧洲人权公约》权利的方式解读立法（第3条）。如不可能，可发布不一致声明（第4条）。第6条：公共当局须行为相符；如违反，被害人可依第7条主张权利。

11. General Defences: Consent, Self-Defence, Duress | 一般抗辩：同意、自卫、胁迫

Consent formula: For non-fatal offences, consent can be a defence if victim’s consent is true and informed (R v Dica). Cannot consent to ABH/GBH unless in recognised categories (sport, surgery, tattooing – R v Brown).

同意公式：对非致命犯罪，若被害人同意真实且知情，可作抗辩（迪卡案）。除公认类别外（运动、手术、纹身—布朗案），不得同意实际身体伤害/严重身体伤害。

Self-defence/defence of property: s.76 Criminal Justice and Immigration Act 2008 – D may use reasonable force as genuinely believed necessary (subjective). Degree of force must be reasonable (objective); householder cases allow disproportionate but not grossly disproportionate force (R v Ray).

自卫/防卫财产：2008年《刑事司法与移民法》第76条—被告可使用基于真诚相信为必要的合理武力（主观）。武力程度须合理（客观）；住户案件允许不成比例但非严重不成比例的武力（雷案）。

Duress (threats): Requires (1) threat of death/serious injury, (2) against D or immediate family, (3) reasonable belief, (4) would a sober person of reasonable firmness share D’s response? (R v Graham). Excluded for murder, attempted murder, treason (R v Howe).

胁迫（威胁）公式：要求（1）死亡/严重伤害威胁；（2）针对被告或直系亲属；（3）合理相信；（4）一个清醒、合理坚定的人是否会与被告有相同反应？（格雷厄姆案）。不适用于谋杀、企图谋杀、叛国罪（豪案）。

12. Precedent & Statutory Interpretation | 先例与法律解释

Doctrine of Precedent: Ratio decidendi (binding reason) must be followed by lower courts. Obiter dicta (persuasive). Supreme Court not bound by own past decisions but normally follows with Practice Statement 1966. Court of Appeal bound by own decisions, exceptions in Young v Bristol Aeroplane.

先例原则：判决理由（拘束性理由）下级法院必须遵循。附带意见（有说服力）。最高法院不受自身既往判决拘束，但通常依1966年实践声明遵循。上诉法院受自身判决拘束，例外见杨诉布里斯托飞机公司案。

Statutory Interpretation Rules: Literal rule (ordinary meaning – Whitely v Chappell), golden rule (avoid absurdity – R v Allen), mischief rule (look at gap in law – Smith v Hughes), purposive approach (look at purpose of Act – Pepper v Hart).

法律解释规则：字面规则（普通含义—惠特利诉查佩尔案），黄金规则（避免荒谬—艾伦案），弊害规则（看法律漏洞—史密斯诉休斯案），目的解释法（看法案目的—佩珀诉哈特案）。

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A-Level Edexcel Law: Quick Reference Formula & Theorem Handbook | A-Level Edexcel 法律：公式定理速查手册