📚 Year 7 OCR Law: Quick Reference Handbook of Formulas and Theorems | 七年级 OCR 法律：公式定理速查手册
This handbook collects the most important 'formulas' and 'theorems' of law for Year 7 students following the OCR specification. Just as mathematics uses equations to solve problems, law uses structured principles to establish rights, duties and liabilities. Use this guide to master the building blocks of legal reasoning and to see how rules link together like a chain of logic.
本手册为学习 OCR 课程的七年级学生汇集了法律中最重要的“公式”与“定理”。正如数学用方程解决问题，法律也运用结构性原则来确立权利、义务与责任。借助这本指南，你可以掌握法律推理的基本构件，并看清规则如何像逻辑链条一样环环相扣。
1. What is Law? | 什么是法律？
Law is a set of rules made by the state that everyone in society must follow. It tells us what we can do, what we must do and what we must not do. When a rule is broken, the law provides a remedy or a punishment.
法律是由国家制定的一套规则，社会中的每个人都必须遵守。它告诉我们可以做什么、必须做什么以及禁止做什么。当规则被违反时，法律会提供补救措施或施加惩罚。
The simplest legal 'formula' is: Rule + Breach → Consequence aw (crime → investigation → trial → sentence) and to civil law (wrong → dispute → remedy).
最简单的法律“公式”是：规则 + 违反 → 后果。这适用于刑法（犯罪 → 调查 → 审判 → 量刑）以及民法（不法行为 → 争议 → 救济）。
2. The Formula of a Crime | 犯罪的公式
In English criminal law, almost every offence is built from two essential ingredients. This is the most famous 'formula' in criminal law:
在英格兰刑法中，几乎所有罪行都由两个基本要素构成。这是刑法中最著名的“公式”：
Actus Reus + Mens Rea = Crime
犯罪行为 + 犯罪意图 = 犯罪
Actus reus means the guilty act (the physical element), and mens rea means the guilty mind (the mental element). Both must exist at the same time for a defendant to be found guilty. If either element is missing, there is no crime.
Actus reus 指有罪行为（客观要素），mens rea 指有罪心理（主观要素）。两者必须同时存在，被告才能被定罪。缺少任何一项，犯罪便不成立。
Example: In a charge of theft, the actus reus is the dishonest appropriation of property belonging to another. The mens rea is the intention to permanently deprive the owner of it.
示例：在盗窃指控中，犯罪行为是不诚实地将他人的财产据为己有；犯罪意图是永久剥夺所有者财产的意图。
3. Actus Reus – The Guilty Act | 犯罪行为——有罪行为
The actus reus can take three main forms: a positive act, a failure to act (omission) where there is a duty, or a state of affairs. Most crimes require a voluntary act. An omission only becomes criminal when the law imposes a duty, such as a parent's duty to care for a child.
犯罪行为可以表现为三种主要形式：积极行为、负有义务时的不作为（疏忽），或特定状态。大多数犯罪需要自愿行为。只有在法律施加义务时，不作为才会构成犯罪，例如父母对子女的照顾义务。
The actus reus must be proved beyond reasonable doubt. If the prosecution cannot establish that the defendant actually committed the prohibited act, the case must fail.
犯罪行为必须被证明到排除合理怀疑的程度。如果控方不能证明被告确实实施了被禁止的行为，案件便无法成立。
4. Mens Rea – The Guilty Mind | 犯罪意图——有罪心理
Mens rea describes the defendant’s mental state at the time of the act. The main types recognised in law are intention, recklessness and, for some offences, negligence. Intention means the defendant decided to bring about a prohibited result. Recklessness means the defendant foresaw a risk and went on to take it unreasonably.
犯罪意图描述了被告在行为时的心理状态。法律认可的主要类型包括故意、轻率（放任），以及某些罪行中的过失。故意指被告决定实现一个被禁止的结果。轻率指被告预见到了风险但仍不合理地冒险行事。
Strict liability offences are an exception. For these, no mens rea is required – only the act itself needs to be proved. Examples include many traffic and regulatory offences.
严格责任犯罪是一个例外。对于这些犯罪，不需要证明犯罪意图——只需证明行为本身即可。例子包括许多交通违法行为和监管类犯罪。
5. The Contract Formula | 合同公式
A legally binding contract is formed when several key elements are present. The classic formula in contract law is:
当几个关键要素具备时，一份具有法律约束力的合同就成立了。合同法的经典公式是：
Offer + Acceptance + Consideration + Intention to Create Legal Relations = Contract
要约 + 承诺 + 对价 + 设立法律关系的意图 = 合同
An offer is a clear statement of terms on which the offeror is willing to be bound. Acceptance must mirror the offer exactly (the mirror image rule). Consideration is something of value exchanged between the parties – each side must give something. The intention to create legal relations is presumed in commercial agreements but not in social or domestic arrangements.
要约是发出者愿意受约束的明确条款陈述。承诺必须与要约完全一致（镜像规则）。对价是双方交换的有价值之物——每一方都必须付出一些东西。在商业协议中推定具有设立法律关系的意图，但在社交或家庭安排中则不推定。
If any of these elements is missing, there is no enforceable contract. Also, the parties must have capacity, and the contract must be for a lawful purpose.
如果缺少其中任何一个要素，就没有可强制执行的合同。此外，当事人必须具备缔约能力，且合同目的必须合法。
6. Tort of Negligence Formula | 过失侵权公式
Negligence is the most common tort. To succeed in a claim for negligence, a claimant must prove each of four elements. This is the negligence 'equation':
过失是最常见的侵权行为。要在过失索赔中胜诉，原告必须证明四个要素。这就是过失“方程式”：
Duty of Care + Breach of Duty + Causation + Damage = Negligence
注意义务 + 违反义务 + 因果关系 + 损害 = 过失侵权
First, the defendant must owe the claimant a duty of care. The neighbour principle from Donoghue v Stevenson says you must take reasonable care to avoid acts or omissions which you can reasonably foresee would be likely to injure your neighbour.
首先，被告必须对原告负有注意义务。源自 Donoghue v Stevenson 案的邻居原则指出，你必须采取合理谨慎，避免那些你可以合理预见会伤害到邻居的行为或不作为。
Second, the defendant must breach that duty by falling below the standard of a reasonable person. Third, the breach must cause the damage (factual and legal causation). Finally, the damage must not be too remote – it must be a foreseeable consequence.
其次，被告必须违反了该义务，即未达到一个合理人的标准。第三，违反义务必须导致了损害（事实上和法律上的因果关系）。最后，损害不能过于遥远——必须是可预见的后果。
7. The Rule of Law Equation | 法治方程式
The rule of law is a fundamental principle of the British constitution. It can be expressed as a set of conditions that must all be satisfied:
法治是英国宪法的一项基本原则。它可以表示为一组必须全部满足的条件：
Law is Supreme + Equality Before the Law + Fair Trial → Rule of Law
法律至上 + 法律面前人人平等 + 公正审判 → 法治
No person is above the law, not even the government. Laws must be clear, publicised and applied equally. Access to justice and an independent judiciary are essential. Without these, the rule of law collapses and arbitrary power takes over.
没有人凌驾于法律之上，即使是政府也不例外。法律必须明确、公开且平等适用。获得司法救济的途径和独立的司法体系至关重要。没有这些，法治就会崩溃，专断权力就会取而代之。
8. Sources of Law – Statute and Common Law | 法律渊源——成文法与普通法
English law comes from two main sources: statute law (legislation made by Parliament) and common law (judge-made law through precedent). The relationship can be shown as an 'addition formula':
英格兰法律有两个主要渊源：成文法（议会制定的立法）和普通法（法官通过判例造法）。二者关系可以表示为“加法公式”：
Statute Law + Common Law = The Legal System
成文法 + 普通法 = 法律体系
Parliament is sovereign, meaning statute can override common law. However, judges interpret statutes and fill gaps where statutes are silent. Together they provide a complete framework.
议会主权意味着成文法可以推翻普通法。但法官解释成文法并在成文法没有规定之处填补空白。两者共同提供了完整的框架。
9. Legal Reasoning: Ratio and Obiter | 法律推理：判决理由与附带意见
When judges decide cases, their decisions create precedents. The binding part of a judgment is called the ratio decidendi – the legal principle necessary for the decision. The reasoning that is not strictly necessary is called obiter dicta ('things said by the way').
法官判案时会创造先例。判决中具有约束力的部分称为 ratio decidendi（判决理由）——即作出该判决所必需的法律原则。并非严格必要的推理部分则称为 obiter dicta（附带意见，“顺便说的话”）。
The 'precedent formula' is: Ratio decidendi = Binding precedent for lower courts in the same hierarchy. Obiter dicta is persuasive but not binding. A later court can distinguish a case if the material facts are different, making the ratio inapplicable.
“先例公式”是：判决理由 = 有约束力的先例，对同一体系内的下级法院有效。附带意见具有说服力但不具约束力。后续法院可以区分先例，若关键事实不同，便不适用该判决理由。
10. Human Rights Formula | 人权公式
Under the Human Rights Act 1998, certain fundamental rights are protected. A simple way to remember the structure is:
根据《1998 年人权法案》，某些基本权利受到保护。一个简单的记忆方法是：
Right + Breach → Remedy
权利 + 侵犯 → 救济
For example, Article 6 guarantees the right to a fair trial. If a public authority breaches this right, the victim can seek a declaration, damages or an order to stop the violation. The courts must read legislation in a way that is compatible with Convention rights whenever possible.
例如，第 6 条保障公正审判权。如果公共机构侵犯了这一权利，受害者可以寻求宣告、损害赔偿或停止侵害的命令。法院必须尽可能以符合公约权利的方式解释立法。
11. Liability and Capacity Formulas | 责任与能力公式
Not everyone can be held legally responsible. Capacity rules act as filters. In criminal law, the key age thresholds in England and Wales are simple:
并非每个人都能被追究法律责任。能力规则如同过滤器。在英格兰和威尔士刑法中，关键年龄门槛很简单：
Age < 10 → No criminal liability
年龄小于 10 岁 → 不负刑事责任
Age ≥ 10 → May be prosecuted
年龄大于等于 10 岁 → 可能被起诉
In contract law, minors (under 18) generally have limited capacity. Contracts for necessaries (food, clothing, education) are binding, but other contracts may be voidable. The 'minor's formula' helps balance protection and fairness.
在合同法中，未成年人（18 岁以下）通常具有限制行为能力。关于生活必需品的合同（食物、衣物、教育）具有约束力，但其他合同可能可撤销。“未成年人公式”有助于平衡保护与公平。
12. Civil vs Criminal Law – The Two Tracks | 民法与刑法——双轨并行
The law divides into two main branches. Think of it as a 'fork in the road':
法律分为两大分支，可以将其想象为一个“岔路口”：
Criminal Law: State v Defendant → Punishment
刑法：国家诉被告 → 惩罚
Civil Law: Claimant v Defendant → Remedy
民法：原告诉被告 → 救济
Criminal law deals with conduct harmful to society. The state prosecutes, and the standard of proof is 'beyond reasonable doubt'. Civil law deals with disputes between individuals or organisations. The claimant sues, and the standard of proof is 'on the balance of probabilities'.
刑法处理危害社会的行为。由国家提起公诉，证明标准是“排除合理怀疑”。民法处理个人或组织之间的纠纷。由原告起诉，证明标准是“基于可能性的权衡”。
Memorising this distinction is vital, because the same event – such as a road accident – can lead to both a criminal prosecution and a civil claim for compensation.
记住这一区别至关重要，因为同一事件——例如道路交通事故——可以同时引发刑事起诉和民事赔偿诉讼。
Published by TutorHao | Law Revision Series | aleveler.com
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