LNAT Knowledge — Questions and Answers

Question 1: Which doctrine holds that a court is bound by its own previous decisions?

Res judicata
Stare decisis (Correct answer)
Ratio decidendi
Obiter dictum

Correct answer: Stare decisis

Stare decisis (Latin: 'to stand by things decided') requires courts to follow precedent set by higher or equal courts.

Question 2: Under the US Constitution, which amendment protects against unreasonable searches and seizures?

Second Amendment
Fourth Amendment (Correct answer)
Fifth Amendment
Sixth Amendment

Correct answer: Fourth Amendment

The Fourth Amendment prohibits unreasonable searches and seizures and requires warrants to be supported by probable cause.

Question 3: What is the legal term for a false statement of fact that harms someone's reputation?

Libel
Slander
Defamation (Correct answer)
Perjury

Correct answer: Defamation

Defamation is the umbrella term for false statements that harm reputation; libel refers to written form and slander to spoken form.

Question 4: In English law, which court is the highest court of appeal?

Court of Appeal
High Court
Supreme Court of the United Kingdom (Correct answer)
Privy Council

Correct answer: Supreme Court of the United Kingdom

The UK Supreme Court, established in 2009, replaced the Appellate Committee of the House of Lords as the final court of appeal.

Question 5: What does 'mens rea' refer to in criminal law?

The physical act of a crime
The guilty mind or criminal intent (Correct answer)
The victim's testimony
The prosecution's burden of proof

Correct answer: The guilty mind or criminal intent

Mens rea (Latin: 'guilty mind') refers to the mental element or criminal intent required for most offences.

Question 6: Which international treaty established the International Criminal Court?

Treaty of Rome 1957
Geneva Convention 1949
Rome Statute 1998 (Correct answer)
UN Charter 1945

Correct answer: Rome Statute 1998

The Rome Statute, adopted in 1998 and entered into force in 2002, established the International Criminal Court to prosecute genocide, war crimes, and crimes against humanity.

Question 7: What is 'judicial review' in the context of US constitutional law?

Congress reviewing judicial appointments
Courts reviewing the constitutionality of legislation (Correct answer)
The President reviewing court decisions
Appeals courts reviewing trial court verdicts

Correct answer: Courts reviewing the constitutionality of legislation

Judicial review is the power of courts to examine laws and government actions and invalidate those that conflict with the Constitution, established in Marbury v. Madison (1803).

Question 8: Which principle requires that individuals be given notice and an opportunity to be heard before adverse government action?

Habeas corpus
Due process (Correct answer)
Equal protection
Sovereign immunity

Correct answer: Due process

Due process, guaranteed by the Fifth and Fourteenth Amendments, requires fair procedures before the government deprives someone of life, liberty, or property.

Question 9: In contract law, what is 'consideration'?

The written terms of an agreement
Something of value exchanged by each party (Correct answer)
The signatures on a contract
The legal capacity of the parties

Correct answer: Something of value exchanged by each party

Consideration is the mutual exchange of something of value (money, services, a promise) that makes a contract legally binding.

Question 10: What does the term 'habeas corpus' literally mean?

You shall have the body (Correct answer)
The right to remain silent
Innocent until proven guilty
Let the decision stand

Correct answer: You shall have the body

Habeas corpus (Latin: 'you shall have the body') is a writ requiring a person under arrest to be brought before a judge to determine if detention is lawful.

Question 11: Under the Human Rights Act 1998, which document's rights are incorporated into UK law?

The UN Declaration of Human Rights
The European Convention on Human Rights (Correct answer)
The EU Charter of Fundamental Rights
The Geneva Conventions

Correct answer: The European Convention on Human Rights

The Human Rights Act 1998 incorporates rights from the European Convention on Human Rights into domestic UK law, allowing individuals to enforce those rights in UK courts.

Question 12: Which Latin maxim means 'the thing speaks for itself' and is used in negligence cases?

Caveat emptor
Res ipsa loquitur (Correct answer)
Volenti non fit injuria
Ex turpi causa

Correct answer: Res ipsa loquitur

Res ipsa loquitur allows a claimant to infer negligence from the nature of an accident without proving specific acts, as the circumstances speak for themselves.

Question 13: What is the primary distinction between civil law and criminal law?

Civil law involves written statutes; criminal law relies on case law
Civil law resolves disputes between private parties; criminal law punishes offences against the state (Correct answer)
Civil law is handled by federal courts; criminal law by state courts
Civil law has higher burden of proof than criminal law

Correct answer: Civil law resolves disputes between private parties; criminal law punishes offences against the state

Civil law governs disputes between private individuals or entities and seeks remedies like damages, while criminal law involves the state prosecuting individuals for offences against society.

Question 14: In international law, what is 'jus cogens'?

The right of states to make war
Peremptory norms from which no derogation is permitted (Correct answer)
Treaty obligations between allied states
The principle of state sovereignty

Correct answer: Peremptory norms from which no derogation is permitted

Jus cogens (Latin: 'compelling law') refers to fundamental, non-derogable principles of international law, such as the prohibitions on genocide and slavery, that override all other treaties.

Question 15: Which legal doctrine allows courts to imply a term into a contract that the parties did not expressly include?

Promissory estoppel
Implied terms (Correct answer)
Frustration
Unconscionability

Correct answer: Implied terms

Courts may imply terms into contracts by law, custom, or to give business efficacy, filling gaps the parties did not address.

Question 16: Under the US federal system, what does the Supremacy Clause establish?

The President's authority over Congress
Federal law as the supreme law of the land over conflicting state laws (Correct answer)
The Supreme Court's power to strike down legislation
Congress's power to regulate interstate commerce

Correct answer: Federal law as the supreme law of the land over conflicting state laws

The Supremacy Clause (Article VI) establishes that the Constitution, federal laws, and treaties are the supreme law of the land, preempting conflicting state laws.

Question 17: What is 'actus reus' in criminal law?

The mental element of a crime
The physical act or conduct constituting a crime (Correct answer)
The victim's consent
The sentencing phase of a trial

Correct answer: The physical act or conduct constituting a crime

Actus reus (Latin: 'guilty act') refers to the physical element of a criminal offence — the voluntary act, omission, or state of affairs prohibited by law.

Question 18: Which landmark case established the principle of judicial review in the United States?

McCulloch v. Maryland (1819)
Marbury v. Madison (1803) (Correct answer)
Dred Scott v. Sandford (1857)
Plessy v. Ferguson (1896)

Correct answer: Marbury v. Madison (1803)

In Marbury v. Madison (1803), Chief Justice John Marshall established the Supreme Court's authority to invalidate laws that conflict with the Constitution.

Question 19: In tort law, what distinguishes 'battery' from 'assault'?

Assault requires physical contact; battery does not
Battery involves actual physical contact; assault is the apprehension of imminent contact (Correct answer)
Battery is a crime only; assault can be a civil tort
There is no legal distinction between the two

Correct answer: Battery involves actual physical contact; assault is the apprehension of imminent contact

Assault is causing someone to apprehend immediate unlawful force, while battery is the actual application of unlawful force to another person.

Question 20: What is the role of the 'ratio decidendi' in a court judgment?

A judge's personal opinion on the law
The legal reason for the decision that creates binding precedent (Correct answer)
A summary of the facts of the case
The dissenting judge's view

Correct answer: The legal reason for the decision that creates binding precedent

The ratio decidendi is the legal reasoning essential to the court's decision and is the part of a judgment that binds lower courts under the doctrine of precedent.

Question 21: Which principle in administrative law requires public authorities to act within their legal powers?

Proportionality
Vires (Correct answer)
Natural justice
Legitimate expectation

Correct answer: Vires

The ultra vires doctrine holds that a public body acts unlawfully if it acts beyond the powers granted to it by Parliament or statute.

LNAT Knowledge

Which doctrine holds that a court is bound by its own previous decisions?

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