📚 Year 13 AQA Law: Formula & Theorem Quick Reference Handbook | AQA 法律公式定理速查手册
This quick reference handbook distils the essential 'formulas', legal tests, and core definitions that underpin the Year 13 AQA A-Level Law syllabus. Each section presents key principles in a concise, formulaic style followed by landmark cases, enabling rapid revision and application to problem questions. Use these formulas as mental checklists when structuring your legal arguments in both criminal and tort law, as well as in essays on the nature of law.
本速查手册提炼了 AQA A-Level 法律 Year 13 课程所需的关键“公式”、法律检验标准和核心定义。每个部分以简洁的公式化风格呈现基本原则，并附上标志性判例，方便快速复习并将其应用于案例分析。在构建刑法、侵权法以及法律本质类的论述时，均可将这些公式作为思维清单使用。
1. Actus Reus Formula | 犯罪行为公式
For all crimes, the prosecution must first establish the actus reus – untary Conduct (act or omission in defined circumstances) + Result (if a result crime) + Causation (factual and legal).
对于所有犯罪，控方必须首先证明犯罪行为——犯罪的外部要素。基本公式为：犯罪行为 = 自愿行为（在特定情境下的作为或不作为）+ 结果（若为结果犯）+ 因果关系（事实与法律上的因果关系）。
A voluntary act means the defendant's muscular movement was under conscious control. An omission will only satisfy actus reus if a legal duty to act exists. Statutory duties, contractual duties, relationship duties (e.g. parent–child), assumption of care, and creation of a dangerous situation can all give rise to liability for omission.
自愿行为意味着被告的肌肉运动处于意识控制之下。不作为只有在存在法律上的作为义务时才构成犯罪行为。法定义务、合同义务、关系义务（如父母对子女）、自愿承担照顾义务以及制造危险情境均可能引发不作为责任。
Factual causation is tested using the 'but for' principle: but for the defendant's conduct, would the result have occurred? (R v White). Legal causation requires that the defendant's act be a substantial and operative cause of the consequence, with no intervening act breaking the chain of causation unless it is a 'free, deliberate and informed' third-party act or an abnormal natural event (R v Pagett). The defendant must take the victim as they find them under the thin-skull rule (R v Blaue).
事实因果关系的检验采用“若非”原则：若非被告的行为，该结果是否会发生？（R v White 案）。法律因果关系要求被告的行为是结果的实质性暨有效原因，除非存在“自由、故意且知情的”第三方行为或异常自然事件中断因果链（R v Pagett 案）。根据薄颅骨规则，被告必须接受被害人本身已有的脆弱特质（R v Blaue 案）。
2. Mens Rea Formula | 犯罪意图公式
blique Intent (where the consequence is a virtually certain result of the act and the defendant appreciated that certainty). The test for oblique intent comes from R v Woollin.
犯罪意图描述了特定犯罪所要求的主观心态要素。标准公式为：故意 = 直接故意（目的或目标）或间接故意（结果在事实上几乎是确定的，且被告本人也意识到这种确定性）。间接故意的检验标准源自 R v Woollin 案。
Recklessness is defined as the conscious taking of an unjustified risk. The defendant must foresee a risk of the prohibited consequence occurring and nevertheless take that risk, and it must be unreasonable in the circumstances known to them (R v G & R). Negligence, by contrast, is an objective failure to meet the standard of a reasonable person and rarely suffices for mens rea unless the offence specifically provides for it (e.g. gross negligence manslaughter).
轻率被定义为明知风险存在仍不合理地冒该风险。被告必须预见到被禁止的结果可能会发生，仍贸然冒险，且在该被告所知悉的情境下该冒险是不合理的（R v G & R 案）。相比之下，过失是一种客观未达到合理人标准的表现，通常不构成犯罪意图，除非相关罪名明确以过失为主观要件（如严重过失杀人）。
Transferred malice applies when the defendant intends to harm one person but misses and harms another; the malice is transferred from the intended victim to the actual victim, provided the actus reus of the same offence is completed (R v Latimer).
犯意转移适用于被告意图伤害某人却误伤另一人的情形；犯意从原定受害人转移至实际受害人，前提是完成了同一罪名的犯罪行为（R v Latimer 案）。
3. Causation Chain Formula | 因果链条公式
Causation is the link between the defendant' prohibited consequence. The complete causation formula is: Liability = Factual Causation ('but for' ing cause) + Absence of novus actus interveniens. Medical negligence, escape attempts, and 'thin skull' re so potent that they make the original act merely part of the background (R v Cheshire).
因果关系是被告行为与被禁止的后果之间的纽带。完整的因果关系公式为：责任 = 事实因果关系（“若非”检验）+ 法律因果关系（实质性暨有效原因）+ 不存在新介入行为。医疗过失、被害人逃跑行为以及“薄颅骨”体质通常不被视为中断因果链条，除非这类因素异常强大，使得原行为退为单纯的背景（R v Cheshire 案）。
In homicide, a victim's refusal of medical treatment on religious grounds does not break the chain (R v Blaue). Interventions by a third party must be free, deliberate and informed to sever legal causation (R v Pagett). An act of God must be entirely unforeseeable to break the chain.
在杀人案件中，被害人基于宗教原因拒绝医疗不中断因果链（R v Blaue 案）。第三方的介入行为必须是自由、故意且知情的，方能切断法律因果关系（R v Pagett 案）。天灾必须完全不可预见，才可能中断因果链。
4. Murder Formula | 谋杀定义公式
Murder is a common law offence with the classic formula: 'The unlawful killing of a reasonable creature in being under the Queen's peace with malice aforethought, express or implied.' sation of death. A reasonable creature in being means a human being independent of the mother (AG's Ref (No. 3 of 1994)).
谋杀是一项普通法犯罪，经典公式为：“在女王的和平下，非法杀害一个合乎自然状态的生命体，并具有明示或隐含的恶意预谋。”分解来看：非法杀害 = 行为（或符合条件的不作为）+ 导致死亡的因果关系。合乎自然状态的生命体指独立于母体存活的人类个体（AG's Ref (No. 3 of 1994) 案）。
Malice aforethought means an intention to kill (express malice) or an intention to cause grievous bodily harm (implied malice). It is a specific intent offence, meaning recklessness is insufficient. The mandatory life sentence under s.1 Murder Act 1965 remains, but judges may set a minimum tariff.
恶意预谋指意图杀人（明示恶意）或意图造成严重身体伤害（隐含恶意）。谋杀是特定意图犯罪，轻率无法构成本罪。根据《1965年谋杀法》第1条，法定强制终身监禁仍然保留，但法官可设定最低服刑年限。
5. Voluntary Manslaughter Formulas | 自愿过失杀人公式
Voluntary manslaughter arises when the defendant satisfies the actus reus and mens rea of murder but relies on one of three special partial defences: loss of control, diminished responsibility, or suicide pact. The formulas are:
自愿过失杀人出现在被告虽满足谋杀的行为和意图要件，但成功援引三项特殊部分抗辩之一时：失控、减责或自杀协定。其公式如下：
Loss of Control (ss. 54–55 Coroners and Justice Act 2009): (a) the defendant must lose self-control; (b) the loss must be triggered by a qualifying trigger (fear of serious violence, or things said/done which are of an extremely grave character and caused a justifiable sense of being seriously wronged); (c) a person of the defendant's sex and age, with a normal degree of tolerance and self-restraint, might have reacted in a similar way. Sexual infidelity alone cannot constitute a qualifying trigger.
失控（《2009年死因裁判官及司法法》第 54–55 条）：(a) 被告必须失去自我控制；(b) 失控必须由一个适格触发因素引发（对严重暴力的恐惧，或所言之物/所做之事性质极其严重并引起合理的严重受屈感）；(c) 一个与被告同性别、同年龄并具有正常容忍度和自控力的人，在相同情况下可能做出类似反应。单纯性不忠不能构成适格触发因素。
Diminished Responsibility (s.2 Homicide Act 1957 as amended): (a) abnormality of mental functioning arising from a recognised medical condition; (b) which substantially impaired the defendant's ability to understand the nature of their conduct, to form a rational judgment, or to exercise self-control; (c) provides an explanation for the killing.
减责（经修订的《1957年杀人法》第2条）：(a) 由公认的医学状况引起的精神功能异常；(b) 该异常实质性削弱了被告理解自身行为性质、形成理性判断或行使自控的能力；(c) 为杀害行为提供解释。
6. Non-Fatal Offences Ladder | 非致命犯罪等级公式
The five principal non-fatal offences against the person form a ladder of increasing seriousness. Their statutory or common law formulas are:
人身侵犯的五种主要非致命犯罪构成一个严重性递增的阶梯。其法条或普通法公式如下：
Assault: An act which causes the victim to apprehend the immediate infliction of unlawful personal violence (no contact required). Battery: The actual infliction of unlawful personal violence. s.47 Offences Against the Person Act 1861 (ABH): Assault or battery occasioning actual bodily harm – any hurt or injury calculated to interfere with the health or comfort of the victim. s.20 OAPA 1861 (Malicious wounding or GBH): Unlawful and malicious wounding or inflicting grievous bodily harm (recklessness suffices). s.18 OAPA 1861 (Wounding or GBH with intent): Unlawfully and maliciously wounding or causing GBH with specific intent to do so or to resist/prevent lawful arrest.
恐吓袭击：使被害人感知到即将遭受非法人身暴力的行为（无需接触）。殴打：实际施加非法人身暴力。《1861年人身侵犯法》第47条（实际身体伤害）：恐吓袭击或殴打造成实际身体伤害——任何旨在干扰被害人健康或舒适的伤害或损伤。第20条（恶意伤人/重伤）：非法且恶意地伤人或造成严重身体伤害（轻率即满足主观要件）。第18条（重伤故意）：非法且恶意地伤人或造成GBH，并具有造成该结果的特定意图或抗拒/阻止合法逮捕的意图。
For s.47, the actus reus is a common assault or battery that causes ABH; the mens rea is the same as for the initial assault or battery (Roberts). For s.20, the mens rea is 'malice' – meaning reckless as to some harm – and for s.18 it is specific intent to cause GBH or resist arrest. Note: 'Wound' requires a break in the continuity of the whole skin.
就第47条而言，犯罪行为是导致ABH的普通袭击或殴打；犯罪意图与初始袭击或殴打相同（Roberts 案）。第20条的犯罪意图是“恶意”——意指对某些伤害具有轻率心态；而第18条要求造成GBH或抗拒逮捕的特定意图。注意：“创伤”要求全层皮肤连续性破裂。
7. Theft and Robbery Formulas | 盗窃与抢劫公式
Theft is defined in s.1 Theft Act 1968: ' nestly appropriates property belonging to another with the intention of permanently depriving the other of it.' priation + Property + Belonging to Another + Intention to Permanently Deprive. Appropriation is a neutral act of assuming rights of an owner (R v Gomez). Dishonesty is tested by the Ivey v Genting Casinos two-stage test: what was the defendant's actual knowledge/belief, and would the ordinary honest person consider it dishonest?
盗窃定义于《1968年盗窃法》第1条：“凡以不诚实方式占用他人财产，且具有永久剥夺他人财产意图者，即犯盗窃罪。”公式：盗窃 = 不诚实的占用 + 财产 + 属于他人 + 具有永久剥夺意图。占用是任何一个行使所有权人权利的中性行为（R v Gomez 案）。不诚实性依据 Ivey v Genting Casinos 两阶段检验：被告实际所知/所信为何，以及普通诚信之人是否会认为该行为不诚实？
, they use force on any person or put/seeks to put any person in fear of being then and there subjected to force. The formula is: Robbery = Completed Theft + Force or Threat of Force + Immediately Before or at the Time + In Order to Steal. If any element of theft is absent, there is no robbery (R v Robinson). The force or threat must be used in order to steal (R v Hale).
抢劫定义于《1968年盗窃法》第8条：若某人在实施盗窃之际，或在盗窃前即刻，并为了盗窃之目的，对任何人使用武力，或使/试图使任何人担心当场即刻遭受武力，即构成抢劫。公式为：抢劫 = 完成的盗窃 + 武力或武力威胁 + 盗窃前即刻或当时 + 为了盗窃目的。如果盗窃的任何一项要素缺失，抢劫即不成立（R v Robinson 案）。武力或威胁必须是为了盗窃而使用（R v Hale 案）。
8. Defence Formulas | 抗辩公式速查
General defences can be expressed as simple logical checks. Self-defence / prevention of crime: (a) honest belief in the need for force (subjective); (b) degree of force reasonable in the circumstances as the defendant believed them to be (objective). Excessive force defeats the defence, but the jury must not judge with 'the wisdom of hindsight' (s.76 Criminal Justice and Immigration Act 2008; R v Owino).
一般抗辩可以表述为简单的逻辑核验。自我防卫/阻止犯罪：(a) 真诚相信有必要使用武力（主观）；(b) 在被告所相信的情境下所使用的武力程度合理（客观）。过度武力会使抗辩失败，但陪审团不得以“事后之明”进行评判（《2008年刑事司法与移民法》第76条；R v Owino 案）。
Intoxication: Voluntary intoxication is generally no defence to basic intent crimes but may negate mens rea for specific intent crimes if it means the defendant did not form the required intent (DPP v Majewski). Involuntary intoxication (e.g. spiked drink) may provide a full defence if it destroyed mens rea. Insanity (M'Naghten Rules): At the time of the act, the defendant was suffering from a defect of reason arising from a disease of the mind such that they did not know the nature and quality of the act, or did not know it was wrong. Automatism: Total destruction of voluntary control caused by an external factor (e.g. blow to head) not self-induced.
醉态：自愿醉态通常不构成基本意图犯罪的抗辩，但若是特定意图犯罪，且醉态导致被告确实未形成所需故意，则可否定犯罪意图（DPP v Majewski 案）。非自愿醉态（如被下药）若摧毁了犯罪意图，可形成完全抗辩。精神错乱（M'Naghten 规则）：在行为时，被告患有由精神疾病引起的理性缺陷，导致其不知行为性质或不知行为错误。自动症：由外部因素（如头部受击）引起的意志控制完全丧失，且非自致。
9. Negligence Formula in Tort | 过失侵权公式
To establish negligence, a claimant must prove: Duty of Care + Breach of Duty + Causation of Damage + Remoteness. The formula for duty is the three-part Caparo test: (a) foreseeability of harm; (b) proximity between the parties; (c) it must be fair, just and reasonable to impose a duty (Caparo Industries v Dickman).
要证明过失侵权，原告必须证实：注意义务 + 违反注意义务 + 损害的因果关系 + 损害的间接性。注意义务之公式为 Caparo 三阶段测试：(a) 损害是否可预见；(b) 双方之间是否存在接近性；(c) 施加注意义务是否公平、公正且合理（Caparo Industries v Dickman 案）。
Breach occurs if the defendant falls below the standard of the reasonable person, considering risk factors under s.2 Unfair Contract Terms Act (not directly binding in tort but the common law uses similar balancing): likelihood of harm, seriousness of potential harm, cost of precautions, social utility of the defendant's conduct (Bolton v Stone). Professional standard is higher – that of the ordinary competent professional (Bolam test), though informed consent in medical cases now includes material risks (Montgomery v Lanarkshire HB).
若被告未达到合理人标准，则构成违反义务，这考虑了普通法中的风险因素：损害发生可能性、潜在损害的严重性、预防措施成本，以及被告行为的社会效益（Bolton v Stone 案）。专业标准更高——即一般称职专业人员的标准（Bolam 检验），但在医疗知情同意方面，材料风险也需披露（Montgomery v Lanarkshire HB 案）。
Causation uses the 'but for' test (Barnett v Chelsea & Kensington Hospital), and the damage must not be too remote. Under the Wagon Mound (No. 1), the type of damage must be reasonably foreseeable; the thin-skull rule applies to personal injury.
因果关系采用“若非”检验（Barnett v Chelsea & Kensington Hospital 案），且损害不得过于间接。根据 Wagon Mound (No. 1) 案，损害类型须是可合理预见的；对人身伤害适用薄颅骨规则。
10. Rule of Law & Justice Theory Formulas | 法治与正义理论公式
The Rule of Law is a constitutional principle that can be summarised by Dicey's three-limb formula: (a) no punishment without a breach of the law; (b) equality before the law for all persons and classes; (c) the constitution is the result of the ordinary law of the land, securing individual rights through common law remedies.
法治是一项宪法原则，可概括为戴西的三项公式：(a) 未经法律明文违背不得处罚；(b) 所有人及所有阶层在法律面前一律平等；(c) 宪法系由国土上的普通法所衍生，通过普通法救济保障个人权利。
Theorists of justice provide evaluative frameworks for law. Aristotle's distributive justice: equals should be treated equally, and unequals unequally according to relevant differences. Rawls' 'veil of ignorance' and two principles: equal basic liberties, and social/economic inequalities arranged to benefit the least advantaged. Nozick's entitlement theory: justice in acquisition, transfer, and rectification – minimal state intervention.
正义理论家为法律提供了评价框架。亚里士多德的分配正义：同等者同等对待，不同等者依相关差异而不同对待。罗尔斯的“无知之幕”及两项原则：平等的基本自由，以及社会与经济不平等需最有利于最不利者。诺齐克的资格理论：获取正义、转让正义与矫正正义——主张最低限度的国家干预。
These theories are crucial for essays on law and justice, and you can present them as 'formulas' comparing equality, need, merit, and liberty. The debate between Hart and Devlin on law and morality further invites the formula: Law may enforce morality only if the conduct threatens society's cohesion (Devlin) versus law must remain separate from private morality except to prevent harm (Hart, influenced by Mill).
这些理论对于法律与正义类论文至关重要，你可以将它们视为比较平等、需求、功绩和自由的“公式”。哈特与德弗林关于法律与道德的争论进一步引出以下公式：当行为威胁社会凝聚力时，法律方可强制执行道德（德弗林），而法律必须与私人道德相分离，除非为防止损害（哈特，受密尔影响）。
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