KS3 WJEC Law: Formula & Principle Quick Reference Handbook | KS3 WJEC 法律：公式定理速查手册

📚 KS3 WJEC Law: Formula & Principle Quick Reference Handbook | KS3 WJEC 法律：公式定理速查手册

Law is not like mathematics — you will not find equations with x and y. But law does have its own “formulas”: principles, rules and maxims that help us understand how justice works. This handbook gives you a quick reference to the core legal formulas (principles) you need for KS3 WJEC Law. Use it to revise the building blocks of the legal system in England and Wales.

法律不像数学——你不会找到带有 x 和 y 的方程式。但法律确实有自己的“公式”：帮助我们理解正义如何运作的原则、规则和法谚。本手册为你提供 KS3 WJEC 法律所需的核心法律公式（原则）的快速参考。用它来复习英格兰和威尔士法律体系的基石。

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1. Actus Reus + Mens Rea = Crime | 犯罪行为 + 犯罪意图 = 犯罪

The most fundamental legal formula states that a crime is made up of two parts: the guilty act (actus reus) and the guilty mind (mens rea). To secure a conviction, the prosecution usually must prove both. If either element is missing, the accused is not guilty.

最基本的法律公式指出，犯罪由两部分组成：犯罪行为（actus reus）和犯罪意图（mens rea）。为了定罪，控方通常必须证明两者。如果缺少任何一个要素，被告即不构成犯罪。

Actus reus can be an action (like hitting someone), a failure to act when there is a duty (like a parent not feeding a child), or a state of affairs (like being found drunk in a public place). Mens rea refers to the mental element — for example, intention, recklessness or negligence.

犯罪行为可以是作为（如打人）、有义务却不作为（如父母不给孩子食物），或一种状态（如在公共场所被发现醉酒）。犯罪意图指的是心理要素——例如，故意、轻率或疏忽。

Crime = Actus Reus + Mens Rea – Defence

犯罪 = 犯罪行为 + 犯罪意图 – 抗辩理由

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2. The Burden of Proof: ‘Beyond Reasonable Doubt’ | 举证责任：“排除合理怀疑”

In criminal law, the prosecution bears the burden of proving the defendant’s guilt. This is the golden thread of English law: a person is presumed innocent until proven guilty. The standard of proof is ‘beyond reasonable doubt’ — the highest standard in law.

在刑法中，控方承担证明被告有罪的责任。这是英格兰法律的黄金原则：任何人在被证明有罪之前被推定无罪。证明标准是“排除合理怀疑”——法律上最高的标准。

If the jury or magistrates have any reasonable doubt about the defendant’s guilt, they must acquit. In civil cases, the standard is lower: ‘on the balance of probabilities’ (more likely than not). The formula for a criminal verdict is therefore: Prosecution proves all elements beyond reasonable doubt → Guilty; otherwise → Not Guilty.

如果陪审团或治安法官对被告有罪存有任何合理怀疑，他们必须宣告无罪。在民事案件中，标准较低：“盖然性权衡”（更有可能）。因此，刑事裁决的公式为：控方排除合理怀疑地证明所有要素 → 有罪；否则 → 无罪。

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3. The Rule of Law | 法治原则

The rule of law is a foundational principle in the UK constitution. It means that no one is above the law, and everyone is subject to the same legal rules. This principle acts as a formula to check the exercise of power by the state.

法治是英国宪法的根本原则。它意味着没有人凌驾于法律之上，每个人都受相同法律规则的约束。这一原则作为一个公式，用以制约国家权力的行使。

Key ingredients include: laws must be clear, published and stable; justice must be accessible; and the rights of individuals must be protected by independent courts. The rule of law can be summarised as:

核心要素包括：法律必须明确、公开且稳定；司法必须可及；个人权利必须由独立法院保护。法治可概括为：

Arbitrary Power + No Legal Check ≠ Rule of Law

专断权力 + 无法治监督 ≠ 法治

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4. Sources of Law: Statute + Precedent | 法律渊源：制定法 + 判例

In England and Wales, the two main sources of law are Acts of Parliament (statute law) and judicial precedent (case law). The formula for a legal rule often starts with a statute, which is then interpreted and applied by judges through the doctrine of precedent.

在英格兰和威尔士，两个主要的法律渊源是议会法案（制定法）和司法判例（判例法）。一项法律规则的公式通常始于制定法，然后由法官通过遵循先例原则对其进行解释和适用。

The hierarchy of courts is crucial: decisions of higher courts bind lower courts. The Supreme Court is the highest authority. Where a statute conflicts with a precedent, statute prevails because of parliamentary sovereignty. This can be expressed as:

法院等级至关重要：上级法院的判决对下级法院有约束力。最高法院是最高权威。当制定法与判例冲突时，由于议会主权，制定法优先。这可以表示为：

Act of Parliament > Judicial Precedent

议会法案 > 司法判例

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5. Tort Law: Duty + Breach + Damage = Negligence | 侵权法：义务 + 违反 + 损害 = 过失

The tort of negligence is one of the most important civil wrongs. To succeed in a negligence claim, a claimant must prove three things: the defendant owed them a duty of care, the defendant breached that duty, and the breach caused damage which is not too remote. This is the classic formula from Donoghue v Stevenson.

过失侵权是最重要的民事不法行为之一。要成功主张过失，索赔人必须证明三件事：被告对其负有注意义务，被告违反了该义务，且该违反造成了非过于遥远的损害。这是源自 Donoghue v Stevenson 案的经典公式。

The duty of care is based on the ‘neighbour principle’: you must take reasonable care to avoid acts or omissions which you can reasonably foresee would be likely to injure your neighbour. A neighbour in law is anyone who is closely and directly affected by your actions.

注意义务基于“邻人原则”：你必须采取合理注意，避免你可以合理预见到可能伤害邻人的作为或不作为。法律上的邻人是指任何受你行为密切和直接影响的人。

Element (要素)	English description	中文说明
Duty of care	Owed to a foreseeable neighbour	对可预见的邻人负有义务
Breach	Conduct falls below the standard of the reasonable person	行为低于合理人的标准
Damage	Causation in fact and in law (not too remote)	事实与法律上的因果关系（非过于遥远）

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6. Criminal Law Principles: Automatism and Intoxication | 刑法原则：自动症与醉酒

Sometimes a defendant may raise a defence that negates either the actus reus or mens rea. Two important legal principles are automatism and intoxication. Automatism is a complete defence because it shows the act was not voluntary. Intoxication, however, is a more limited defence — it depends on whether the offence is one of specific or basic intent.

有时被告可能提出抗辩，否定犯罪行为或犯罪意图。两个重要的法律原则是自动症和醉酒。自动症是一个完全抗辩，因为它表明该行为并非自愿。然而，醉酒是一个更受限制的抗辩——它取决于罪行是特定意图还是基本意图。

The formula for automatism: voluntary act missing → actus reus not established → not guilty. For intoxication, if it is voluntary intoxication and the crime is one of basic intent, the defendant may still be convicted if they would have formed the mens rea had they been sober. Specific intent crimes require proof of a higher level of intent, and intoxication may negate that.

自动症的公式：缺乏自愿行为 → 犯罪行为不成立 → 无罪。对于醉酒，如果是自愿醉酒且罪行属于基本意图，如果被告在清醒状态下会形成犯罪意图，仍可能被定罪。特定意图罪行需要证明更高程度的故意，醉酒可能否定这一点。

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7. Sentencing: Aggravating and Mitigating Factors | 量刑：加重与减轻因素

When a defendant is found guilty, judges use a sentencing formula that considers the harm caused and the culpability of the offender. Within this, aggravating factors increase the seriousness and mitigating factors reduce it. The final sentence is a balance of these plus any statutory guidelines.

当被告被判有罪时，法官使用量刑公式，考虑造成的损害和犯罪者的罪责程度。其中，加重因素增加严重性，减轻因素降低严重性。最终刑罚是这些因素的平衡，外加任何法定指南。

Examples of aggravating factors: offence committed while on bail, previous convictions, use of a weapon, vulnerable victim. Mitigating factors: no previous convictions, genuine remorse, minor role in the offence, provocation. A basic sentencing formula could be:

加重因素的例子：在保释期间犯罪、有前科、使用武器、受害人为弱势群体。减轻因素：无前科、真诚悔悟、在犯罪中起次要作用、受到挑衅。基本的量刑公式可以是：

Sentence = (Harm × Culpability) + Aggravating – Mitigating

刑罚 = (损害 × 罪责) + 加重因素 – 减轻因素

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8. Parliamentary Supremacy and Delegated Legislation | 议会主权与授权立法

Parliament is the supreme law-making body. It can make or unmake any law, and no other body can override it. This principle, developed by A.V. Dicey, is a constitutional formula. However, Parliament often delegates law-making powers to government ministers and local authorities through ‘delegated legislation’.

议会是最高立法机关。它可以制定或废除任何法律，其他任何机构都不能推翻它。这一由 A.V. 戴雪发展的原则是一项宪法公式。然而，议会经常通过“授权立法”将立法权委托给政府部长和地方当局。

Delegated legislation comes in forms such as statutory instruments, bylaws and Orders in Council. It must stay within the powers granted by the parent Act, otherwise the courts can strike it down as ultra vires (beyond powers). The formula is:

授权立法的形式包括法定文件、地方法规和枢密院令。它必须在母法授予的权力范围内，否则法院可以以其越权（超越权限）而将其撤销。公式为：

Parent Act → Delegated Legislation (if within powers) → Valid Law

母法 → 授权立法（如果在权限内）→ 有效法律

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9. Human Rights: Proportionality Test | 人权：比例性检验

Under the Human Rights Act 1998, public authorities must act compatibly with Convention rights. Many rights are qualified, meaning they can be restricted if certain conditions are met. The proportionality test is a legal formula used to decide if a restriction is justified. It asks: is the objective sufficiently important, is the measure rationally connected, is it no more than necessary, and is it a fair balance?

根据1998年《人权法案》，公共机构的行为必须与公约权利相兼容。许多权利是有限制的，这意味着如果满足某些条件，可以加以限制。比例性检验是用来决定一项限制是否合理的法律公式。它问：目标是否足够重要，措施是否合理相关，是否不超过必要限度，以及是否达到公平平衡？

The four-stage test ensures individual rights are not infringed arbitrarily. For example, a ban on a protest may be proportionate if there is a serious threat of disorder, but not if a peaceful demonstration is merely inconvenient. Remember:

四阶段检验确保个人权利不被任意侵犯。例如，对抗议的禁令如果存在严重的混乱威胁可能是合比例的，但如果和平示威仅仅带来不便则不是。记住：

Restriction on right + Legitimate aim + Necessary + Balanced = Proportionate

权利限制 + 正当目的 + 必要 + 平衡 = 合比例

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10. The Separation of Powers | 权力分立

The separation of powers is a model for how a state should be governed. It divides government into three branches: the legislature (makes law), the executive (implements law) and the judiciary (interprets law). This concept prevents an over-concentration of power and acts as a system of checks and balances.

权力分立是一个关于国家如何治理的模式。它将政府分为三个分支：立法机关（制定法律）、行政机关（实施法律）和司法机关（解释法律）。这一概念防止权力过度集中，并起到制衡系统的作用。

In the UK, the separation is not strict; for example, government ministers sit in Parliament. However, the Constitutional Reform Act 2005 strengthened judicial independence by creating the Supreme Court away from the House of Lords. The principle can be reduced to a formula:

在英国，分立并不严格；例如，政府部长在议会中任职。然而，2005年《宪法改革法》通过设立独立于上议院的最高法院，加强了司法独立。该原则可简化为一个公式：

Legislative + Executive + Judicial = Balanced Government (with independence of judiciary)

立法 + 行政 + 司法 = 平衡政府（配合司法独立）

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11. Alternative Dispute Resolution: Negotiation → Mediation → Arbitration | 替代性争议解决：协商 → 调解 → 仲裁

Not all disputes go to court. The formula for resolving conflicts often starts with negotiation (parties talk directly), then mediation (a neutral third party helps them reach a solution) and finally arbitration (a third party makes a binding decision). These form the ‘ADR ladder’.

并非所有争议都诉诸法院。解决冲突的公式通常始于协商（当事人直接交谈），然后是调解（中立的第三方帮助他们达成解决方案），最后是仲裁（第三方做出有约束力的决定）。这些构成“替代性纠纷解决阶梯”。

ADR is cheaper, faster and more private than litigation. However, it is not suitable for all cases — for example, where a legal precedent is needed or where there is a power imbalance between the parties. The stages are sequential but parties can jump to arbitration directly if they agree.

替代性纠纷解决比诉讼更便宜、更快捷、更私密。然而，它并不适合所有案件——例如，在需要建立法律先例或当事人之间权力不平衡的情况下。这些阶段是顺序进行的，但当事人如果同意也可以直接跳到仲裁。

Dispute Resolution Efficiency: Self-help → Negotiation → Mediation → Arbitration → Litigation

争议解决效率：自助 → 协商 → 调解 → 仲裁 → 诉讼

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12. Revision Table: Key Legal Terms as Quick-Reference Symbols | 速查表：关键法律术语作为快速参考符号

Use this table like a set of symbols in a science formula sheet. Each legal term can be thought of as a symbol that fits into the larger legal equation.

像使用科学公式表中的符号一样使用此表。每个法律术语都可以被视为一个符号，融入更大的法律方程中。

Symbol / Term (符号/术语)	English Meaning	中文含义
AR	Actus Reus (guilty act)	犯罪行为
MR	Mens Rea (guilty mind)	犯罪意图
D	Defendant / Defence	被告 / 抗辩
P/C	Prosecution / Claimant	控方/索赔人
BoP	Burden of Proof	举证责任
SoP	Standard of Proof	证明标准
BRD	Beyond Reasonable Doubt	排除合理怀疑
BoP	Balance of Probabilities	盖然性权衡
C	Causation	因果关系
N	Neighbour principle	邻人原则
UL	Ultra Vires	越权
P	Proportionality	合比例性

Memorising these building blocks will help you “solve” legal problems quickly in exams. Remember, law is a system built on logic, and every legal question can be broken down into its basic components, just like an equation.

记住这些构建模块将帮助你在考试中快速“解答”法律问题。记住，法律是一个建立在逻辑之上的体系，每一个法律问题都可以像方程式一样被分解成其基本组成部分。

Published by TutorHao | Law Revision Series | aleveler.com

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