📚 Year 12 CIE Law: Legal Maxims and Doctrines Quick Reference | Year 12 CIE 法律：法律格言与原理速查手册
This quick reference guide distils the core legal principles, Latin maxims and key doctrines required for the Year 12 CIE Law syllabus. Use it as a rapid revision tool to link concepts, case law and exam-ready definitions.
这份速查手册提炼了 Year 12 CIE 法律课程必需的核心法律原则、拉丁格言与关键原理，可作为快速复习工具，帮助你将概念、判例与应试定义串联起来。
1. Actus Reus and Mens Rea | 犯意与犯罪行为
Most crimes require both a guilty act (actus reus) and a guilty mind (mens rea), as expressed in the maxim ‘actus non facit reum nisi mens sit rea’ – the act itself does not make a man guilty unless his mind is also guilty.
绝大多数犯罪要求同时具备犯罪行为（actus reus）和犯罪意图（mens rea），正如拉丁格言所言：“行为本身不构成犯罪，除非内心亦有过错”。
Actus reus can be an act, an omission (where a duty of care exists, e.g. R v Pittwood), or a state of affairs. The act must be voluntary.
犯罪行为可以是作为、不作为（当存在注意义务，如 R v Pittwood 案）或某种状态，且行为必须是自愿的。
Mens rea includes intention (direct or oblique – see R v Woollin), recklessness (R v Cunningham) and, for some offences, negligence or knowledge. Transferred malice allows mens rea to shift from an intended victim to an unintended one (R v Latimer).
犯罪意图包括故意（直接或间接，见 R v Woollin 案）、轻率（R v Cunningham 案）以及部分犯罪中的疏忽或明知。犯意转移允许将针对预期被害人的犯意转移给实际被害人（R v Latimer 案）。
2. Causation | 因果关系
For result crimes, the prosecution must prove that the defendant’s act was both the factual and legal cause of the consequence. Factual causation is established using the ‘but for’ test (R v White). Legal causation requires the defendant’s act to be the substantial and operating cause of the harm, with no intervening act (novus actus interveniens) breaking the chain.
对于结果犯，控方必须证明被告的行为既是事实原因也是法律原因。事实因果关系通过“若无则不”检验标准（R v White 案）确立。法律因果关系则要求被告的行为是损害的重大且持续的原因，且没有介入行为（新介入行为）打断因果链条。
Intervening acts can be natural events, acts of a third party (e.g. R v Pagett) or the victim’s own actions. The egg-shell skull rule (R v Blaue) provides that a defendant must take the victim as they find them, including their physical or religious vulnerabilities.
介入行为可以是自然事件、第三人行为（如 R v Pagett 案）或被害人自身行为。蛋壳脑袋规则（R v Blaue 案）要求被告必须接受被害人的原有状况，包括其身体或宗教信仰等特殊脆弱性。
3. Strict Liability | 严格责任
Strict liability offences require no proof of mens rea for at least part of the actus reus. They are predominantly regulatory or quasi-criminal matters where the imposition of duty is in the public interest (Sweet v Parsley, Gammon v A-G of Hong Kong). The presumption of mens rea can be displaced if the statute concerns a grave social concern or if the offence is truly criminal in nature.
严格责任犯罪对于至少部分犯罪行为不要求证明犯罪意图。这类犯罪主要是监管性或准刑事事项，其中施加责任系出于公共利益（Sweet v Parsley 案、Gammon v A-G of Hong Kong 案）。如果某一制定法涉及重大社会关切或其罪行具有真正的刑事性质，有关犯意的推定可以被推翻。
Common examples include selling alcohol to underage persons or certain environmental offences. Defences of due diligence may be available if provided by statute.
常见例子包括向未成年人售酒或某些环境犯罪。如制定法有规定，可以援引尽职免责抗辩。
4. Offences Against the Person | 侵害人身罪
The Offences Against the Person Act 1861 creates a ladder of non-fatal offences. Assault is causing another to apprehend immediate unlawful force, while battery is the intentional or reckless application of unlawful force. Section 47 ABH (actual bodily harm) requires assault or battery resulting in harm more than trivial. Section 20 GBH requires wounding or inflicting grievous bodily harm with malice (intention or recklessness as to some harm). Section 18 GBH is the most serious: wounding or causing GBH with intent to cause GBH or to resist arrest.
《1861 年侵害人身罪法》建立了非致命犯罪的梯度体系。袭击指使他人对即将发生的非法暴力产生担忧；殴打则是故意或轻率地施加非法暴力。第 47 条实际身体伤害要求袭击或殴打造成了高于轻微程度的伤害。第 20 条严重身体伤害要求造成创伤或严重身体伤害，且具有恶意（意图或轻率导致某种伤害）。第 18 条严重身体伤害最为严重：造成创伤或严重身体伤害，并具有造成严重身体伤害或抗拒逮捕的意图。
The term ‘grievous’ has been defined as ‘really serious harm’ (DPP v Smith). Consent can be a defence to assault and battery but not to ABH or GBH unless the activity falls within a recognised exception (e.g. surgery, sport, rough horseplay).
“严重”一词被定义为“真正严重的伤害”（DPP v Smith 案）。同意可以作为袭击和殴打的抗辩，但不能用于实际身体伤害或严重身体伤害，除非该活动属于公认的例外（如手术、体育、粗野嬉闹）。
5. Theft and Property Offences | 盗窃及财产犯罪
Theft is defined in s.1 Theft Act 1968: the dishonest appropriation of property belonging to another with the intention to permanently deprive. Appropriation (R v Morris, R v Gomez) includes any assumption of the rights of the owner, even with consent. Property includes money, personal items, intangible property and things in action, but not land in most circumstances.
盗窃定义于《1968 年盗窃法》第 1 条：以永久剥夺他人财产为目的，不诚实地占有属于他人的财产。占有行为（R v Morris 案、R v Gomez 案）包括对所有权人权利的任何行使，即使获得了同意。财产包括金钱、个人物品、无形财产和权利动产，但在大多数情况下不包括土地。
Dishonesty is assessed by the Ivey v Genting Casinos test: the tribunal of fact determines (a) what was the defendant’s actual state of knowledge or belief as to the facts, and (b) was the conduct dishonest by the standards of ordinary decent people. Intention to permanently deprive covers cases where the defendant treats the thing as their own regardless of the owner’s rights.
不诚实按照 Ivey v Genting Casinos 案的检验标准评估：事实裁判者判断（a）被告对事实的实际认知或信念为何，以及（b）依正直普通人的标准，该行为是否不诚实。永久剥夺意图涵盖被告将物品视为己有而不顾所有人之权利的情形。
6. General Defences | 一般抗辩理由
Criminal defences can negate the actus reus, mens rea or provide a justification/excuse. Insanity (M’Naghten Rules) requires a defect of reason from disease of the mind, causing the defendant not to know the nature and quality of the act or that it was wrong. Automatism is an involuntary act caused by an external factor, which provides a complete defence if the defendant had a total loss of voluntary control.
刑事抗辩可以否定犯罪行为、犯罪意图，或者提供正当理由或免责事由。精神失常（M’Naghten 规则）要求因精神疾病导致理性缺陷，致使被告不知行为之性质与品质，或不知其行为错误。自动症系由外部因素引起的非自愿行为，若被告完全丧失自主控制能力，则可构成完整抗辩。
Intoxication: voluntary intoxication is only a defence to crimes of specific intent if it prevents the defendant forming the intent (DPP v Majewski). Involuntary intoxication may be a defence to any crime. Self-defence allows reasonable force to be used to protect oneself, another, or property; necessity is assessed on the facts as the defendant honestly believed them to be (R v Gladstone Williams).
醉酒：自愿醉酒仅在行为人因此无法形成特定意图时，才能作为特定意图犯罪的抗辩（DPP v Majewski 案）。非自愿醉酒则可作为任何犯罪的抗辩。自卫允许使用合理武力保护自身、他人或财产；必要性依据被告真诚相信的事实评估（R v Gladstone Williams 案）。
Duress by threats or circumstances is available for all crimes except murder and some treason cases. The defendant must reasonably fear death or serious injury, have showed reasonable steadfastness, and the threat must be immediate.
被迫行为（威胁或情势所迫）适用于除谋杀及某些叛国案之外的所有犯罪。被告须合理地恐惧死亡或严重伤害，且表现出合理的坚忍性，威胁还须紧迫。
7. Negligence: Duty of Care | 过失侵权：注意义务
To establish negligence, a claimant must prove duty of care, breach, causation and damage. The neighbour principle from Donoghue v Stevenson forms the foundation: one must take reasonable care to avoid acts or omissions which one can reasonably foresee would be likely to injure one’s neighbour – persons closely and directly affected.
要成立过失侵权，原告须证明注意义务、违反义务、因果关系及损害。Donoghue v Stevenson 案确立的邻人原则是其基石：一个人应当采取合理注意，以避免可合理预见会伤害邻人（即与其有密切且直接关联之人）的行为或不作为。
The modern three-stage test from Caparo v Dickman requires: (i) reasonable foreseeability of damage, (ii) proximity between claimant and defendant, and (iii) that it is fair, just and reasonable to impose a duty. In existing duty relationships (e.g. doctor/patient, driver/road user) the test is easily satisfied, but novel situations must be analysed carefully.
Caparo v Dickman 案确立的现代三段检验标准要求：（i）损害的可合理预见性，（ii）原告与被告间的接近性，以及（iii）施加义务是公平、公正且合理的。在已有的义务关系（如医生/患者、司机/道路使用者）中，该检验标准容易满足，但新型情形则须审慎分析。
8. Negligence: Breach and Causation | 过失侵权：违反与因果关系
Breach occurs when the defendant falls below the standard of the reasonable man (Blyth v Birmingham Waterworks). The court considers the likelihood of harm, the seriousness of the potential injury, the social value of the activity and the cost and practicality of precautions (Latimer v AEC). Expert evidence may be required in professional negligence, applying the Bolam test: a professional who acts in accordance with a practice accepted as proper by a responsible body of professional opinion is not negligent.
义务违反系指被告行为未达到合理人的标准（Blyth v Birmingham Waterworks 案）。法庭考量损害发生的可能性、潜在伤害的严重性、活动的社会价值以及预防措施的成本与可行性（Latimer v AEC 案）。专业过失中可能需要专家证据，并适用 Bolam 检验：专业人士若其行为符合一个负责任的业内团体认可为适当的做法，则不构成过失。
Causation mirrors criminal causation but in the civil context: the ‘but for’ test and the requirement that the damage not be too remote (The Wagon Mound). The defendant will be liable for damage of a type that was reasonably foreseeable, even if the precise manner or extent was not.
因果关系与刑事因果关系相呼应，但属民事语境：“若无则不”检验，以及损害不得过于遥远的规则（The Wagon Mound 案）。被告对可合理预见类型的损害负责，即便其具体发生方式或程度并不可预见。
9. Occupiers’ Liability | 占有人责任
The Occupiers’ Liability Act 1957 governs liability to lawful visitors. An occupier has a common duty of care to ensure that visitors will be reasonably safe in using the premises for the purposes for which they are invited or permitted. Children require a higher degree of care (Glasgow Corp v Taylor). The Act also allows an occupier to discharge the duty by providing adequate warnings, and to expect that persons exercising a calling (e.g. window cleaners) will guard against their own special risks.
《1957 年占有人责任法》规定了占有人对合法访客的责任。占有人负有一项共同的注意义务，确保访客在为此目的而被邀请或允许进入时，能够合理地安全使用房舍。儿童需要更高程度的注意（Glasgow Corp v Taylor 案）。该法也允许占有人通过提供充分警告来履行义务，并可期待从事特定行业的人士（如窗户清洁工）会防范其自身的特殊风险。
The Occupiers’ Liability Act 1984 imposes a more limited duty towards trespassers. Liability arises only if the occupier is aware of the danger and the risk, has reasonable grounds to believe that a trespasser may come into the vicinity, and may be expected to offer some protection. The duty is to take such care as is reasonable in all the circumstances to see that the trespasser does not suffer injury on the premises by reason of the danger concerned.
《1984 年占有人责任法》对侵入者施加了更有限的责任。只有在占有人知悉危险及风险，且有合理依据相信侵入者可能会进入该区域，并可期待其提供某种保护的情形下，才产生责任。该义务是指在所有情况下采取合理注意，以确保侵入者不会因相关危险而在房舍内受到伤害。
10. Contract Formation | 合同成立
A binding contract requires offer, acceptance, consideration, intention to create legal relations and capacity. An offer is a clear expression of willingness to be bound on stated terms; it must be distinguished from an invitation to treat, which is an invitation to make offers (e.g. goods on display in a shop: Pharmaceutical Society v Boots).
具有拘束力的合同要求要约、承诺、对价、受法律约束的意图及缔约能力。要约是明确表示愿意按所述条款受约束；须与要约邀请（即邀请他人发出要约）区分开，例如商店中陈列的商品（Pharmaceutical Society v Boots 案）。
Acceptance must be unequivocal and communicated, except where the postal rule (Adams v Lindsell) applies. Silence cannot amount to acceptance (Felthouse v Bindley). Consideration must be sufficient but need not be adequate; it can be executory or executed but not past (Re McArdle). Intention to create legal relations is presumed in commercial agreements and rebutted in social/domestic contexts.
承诺必须是无条件的且已传达，除非适用邮寄规则（Adams v Lindsell 案）。沉默不能构成承诺（Felthouse v Bindley 案）。对价必须充足但不必足额；可以是待履行或已履行的对价，但不能是过去的对价（Re McArdle 案）。设立法律关系的意图在商业协议中被推定存在，而在社会/家庭情境中则可推翻。
Minors (those under 18) generally lack full capacity; contracts for necessaries are enforceable, but voidable at the minor’s option in certain cases.
未成年人（18 岁以下）通常缺乏完全能力；必需品合同是可执行的，但在某些情形下未成年人可使其无效。
11. Contract Terms and Misrepresentation | 合同条款与虚假陈述
Terms may be express or implied. The court distinguishes between representations (inducements to contract) and terms (promises) by applying the objective test of intention. Once a term is identified, it is classified as a condition (a major term, breach of which allows repudiation of the contract and damages) or warranty (a minor term, breach gives rise to damages only). The modern approach also recognises innominate terms, where the remedy depends on the seriousness of the breach (Hong Kong Fir Shipping).
条款可以是明示的或默示的。法庭通过适用意图的客观标准，区分陈述（诱使订约的陈述）与条款（允诺）。一旦被认定为条款，其将分类为条件条款（主要条款，违反后可解除合同并主张损害赔偿）或保证条款（次要条款，违反仅导致损害赔偿）。现代方法还承认无名条款，其救济措施取决于违反的严重程度（Hong Kong Fir Shipping 案）。
Misrepresentation is a false statement of fact that induces a party to enter the contract. It can be fraudulent, negligent or innocent, affecting the availability of damages. The Misrepresentation Act 1967 s.2(1) imposes liability for negligent misrepresentation unless the maker proves reasonable grounds to believe the truth. Rescission is available subject to bars (lapse of time, affirmation, impossibility).
虚假陈述是指诱使一方订立合同的虚假事实陈述。它可以是欺诈性、过失性或无辜的，影响损害赔偿的可得性。《1967 年虚假陈述法》第 2(1) 条对过失虚假陈述施加责任，除非陈述人能证明具有合理依据相信其真实。撤销权可在不存在障碍（时间延误、确认、恢复不可能）时行使。
12. Remedies in Contract and Tort | 合同与侵权救济
The primary remedy for breach of contract is damages, designed to place the claimant in the position they would have been in if the contract had been performed. Expectation loss is the normal measure; reliance loss may be awarded when expectation is too speculative. Damages must be mitigated, be within the rule of remoteness (Hadley v Baxendale: damages arising naturally or within the parties’ contemplation), and not penal.
违约的主要救济是损害赔偿，旨在将原告置于合同若获履行时本应处于的地位。预期损失是通常的衡量标准；当预期过于不确定时，可判给信赖损失。损害赔偿必须减轻，须在遥远性规则范围内（Hadley v Baxendale 案：自然产生的或当事人缔约时在考虑范围内的损害），且不得具有惩罚性。
Equitable remedies such as specific performance and injunctions are discretionary and available only when damages are inadequate. In tort, the aim is to restore the claimant to their pre-tort position. Damages in negligence therefore compensate for actual physical injury, property damage and reasonable consequential losses, including loss of earnings. For personal injury, damages may include general damages for pain and suffering and special damages for quantifiable losses.
衡平法救济如强制履行和禁令属于裁量性救济，仅在损害赔偿不足以弥补时可得。在侵权中，目标是将原告恢复至侵权前的地位。因此，过失侵权中的损害赔偿补偿实际人身伤害、财产损害和合理的相应损失，包括收入损失。对于人身伤害，损害赔偿可包括对疼痛和痛苦的一般损害赔偿，以及对可量化损失的特殊损害赔偿。
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