Introduction to Law and Legal Systems

Comprehensive vocabulary flashcards covering the nature of legal science, law and society, global legal families, the sources of law, and the structural anatomy of legal norms.

Science

The systematic activity through which people build and organise knowledge in the form of verifiable explanations and predictions about nature, society and human thought.

Normative

Relating to norms; that is, to rules that tell us how we ought to behave, rather than merely describing how we actually behave.

Legal science

The science that studies the laws according to which the state and law emerge, function and change, together with the institutions, rules and legal culture they involve.

Legality

The principle according to which everyone, including the state and public authorities, must obey the law.

General theory of law

The meta-discipline that develops basic legal concepts and explains what law is, how it is constructed, and how it works, serving as a foundation for all other legal disciplines.

Meta-discipline

A discipline that provides the foundational conceptual and methodological tools for all other disciplines within a field.

Branch of law

A set of interconnected legal norms regulating a specific category of social relations that share the same method, foundational principles, and frequently a main legislative code.

Private law

The division of law governing relations between private individuals or companies based on the legal equality of the parties, where neither party imposes rules on the other.

Public law

The division of law governing relations between the state authorities and private persons based on subordination and the state's power to impose rules ($imperium$).

Auxiliary (participatory) sciences

Non-legal disciplines (such as forensic medicine, chemistry, psychology, and judicial statistics) whose methods are utilized to establish factual evidence and correctly apply the law.

Forensic medicine

An auxiliary legal discipline that applies medical science to determine the cause of death, assess injuries, and establish whether a person possessed discernment.

Discernment

A person's psychological and intellectual capacity to understand their actions and appreciate their legal consequences.

General and abstract rule

A rule of conduct that does not name specific individuals, but applies generally to any person who finds themselves in the specified circumstances.

Ex ante

A Latin expression meaning 'beforehand', referring to the capacity of legal rules to guide and coordinate behavior prior to an action taking place.

Constitutive norm

A legal norm that establishes the legal conditions necessary for an act or status to legally 'count' and produce valid legal effects.

Distributive justice

A dimension of justice concerned with the fair allocation of goods, resources, opportunities, and social burdens across society.

Procedural justice

A dimension of justice focused on ensuring fairness, impartiality, and equality of treatment in the processes and procedures by which decisions are reached.

Civil disobedience

The public, deliberate, and non-violent refusal to obey a law regarded as fundamentally unjust, undertaken with the aim of prompting legislative change.

Social control

The entire ensemble of mechanisms, ranging from informal peer pressure to formal state-backed legal sanctions, by which a society induces compliance with its rules.

Repeal

The formal act of removing a statute, or a portion of a statute, from legal force through the enactment of a subsequent legislative measure.

Legal pluralism

The coexistence and parallel operation of multiple distinct systems of rules (such as state law, customary law, and religious law) within the same society.

Critical legal studies

A theoretical movement originating in the United States arguing that law is not neutral or objective, but operates to reflect and reinforce the interests of dominant social groups.

Legal positivism

A school of jurisprudence holding that law is a human construct whose validity depends solely on proper procedural enactment by competent authority, separate from moral considerations.

Natural law theory

A school of jurisprudence asserting that law is inherently tied to universal moral principles discoverable by human reason, maintaining that an unjust rule lacks true legal validity.

Strategic litigation

The practice of selecting and bringing a lawsuit to court with the primary objective of securing a judicial ruling that changes broader public policies, statutes, or administrative practices.

Legal consciousness

The subjective, individual-level manner in which a person perceives, understands, and relates to law and legal rights in day-to-day life.

Legal culture

The collective body of values, traditions, attitudes, and habitual behaviors toward the legal system shared by a society or broad community.

Access to justice

The practical and effective opportunity for an individual to defend their rights, obtain dispute resolution, and participate in legal proceedings without prohibitive barriers.

Intersectionality

The simultaneous convergence and compounding of multiple categories of identity or disadvantage (such as gender, race, and migration status), creating unique forms of discrimination.

Transformative justice

A paradigm of justice that looks beyond formal equality on paper to actively reform institutional power structures, reallocate resources, and empower marginalized communities.

Comparative law

The systematic study and comparison of different national legal traditions to discover their underlying principles, points of convergence, and fundamental differences.

Legal ethnocentrism

The cognitive bias of evaluating foreign legal systems and concepts strictly through the standards and values of one's domestic legal order, presumed to be normal.

Functional equivalence

The principle that distinct legal institutions or doctrines in different jurisdictions can fulfill the exact same practical purpose or resolve the same societal problem.

Legal transplant

The formal transfer, borrowing, or adaptation of a statute, concept, or entire legal institution from one sovereign legal system into another.

Legal family

A grouping of distinct national legal systems that share a common historical genesis, similar primary sources of law, and a shared methodology of legal reasoning.

Inquisitorial procedure

A judicial procedural tradition typical of civil law where the presiding judge actively leads the evidentiary investigation, questions witnesses, and determines the truth.

Accusatorial (adversarial) procedure

A procedural model characteristic of the common law where opposing parties actively present their arguments and evidence while the judge acts as an impartial referee.

Deductive reasoning

A method of legal analysis proceeding from the general to the specific, starting from general statutory provisions and applying them logically to concrete disputes.

Inductive reasoning

A method of legal analysis proceeding from the specific to the general, extracting general rules and doctrines from individual previously decided judicial cases.

Precedent (stare decisis)

The core doctrine of the common law tradition establishing that previous decisions of higher judicial tribunals are strictly binding on subsequent similar disputes.

Ratio decidendi

The decisive legal rationale or essential legal rule upon which a judicial tribunal bases its binding resolution of a dispute.

Obiter dicta

Non-binding judicial observations, remarks, or illustrations made 'in passing' within a judgment that are not essential to resolving the legal dispute.

Judicial activism

A judicial stance where judges proactively shape legal principles, develop unwritten rights, or alter established doctrine rather than exercising strict statutory deference.

Fiqh

The science of Islamic jurisprudence representing the cumulative human scholarly interpretation, derivation, and understanding of divine law.

Personal status

The specific sphere of civil law regulating family relationships, marriage, marital dissolution, parentage, legal capacity, and succession.

Restorative justice

An approach to justice that emphasizes repairing harm, rebuilding community relationships, and achieving consensus between victim and offender rather than merely inflicting retributive punishment.

Legal syncretism

The deliberate and harmonious fusion of distinct elements, concepts, and procedures drawn from multiple legal traditions into an integrated, mutually adapted legal system.

Source of law

The recognized external form in which a legal rule is authoritatively expressed and from which it derives its binding legitimacy and validity.

Formal sources of law

The official mechanisms and documentary forms (such as statutes, constitutions, and binding judicial precedents) that render a legal rule formally binding.

Material sources of law

The underlying socio-economic, political, philosophical, and moral factors that shape the substantive content and objectives of legal enactments.

Rule of recognition

A concept developed by H.L.A. Hart identifying the fundamental master criterion by which officials in a given legal order authoritatively determine which rules count as valid law.

Legal-rational authority

Max Weber's concept of political authority founded upon adherence to formal procedural rules, institutional competence, and legally enacted regulations.

Constitution

The supreme foundational law of a sovereign state determining the distribution of public authority, guaranteeing fundamental liberties, and establishing basic governance rules.

Qualified majority

A heightened voting threshold exceeding a simple majority (such as two-thirds or three-fifths of voting members) mandatory for amending constitutional charters or key statutory acts.

Ultra vires

A Latin doctrine meaning 'beyond the powers', describing an act issued by a public authority exceeding the scope of authority legally conferred upon it.

Organic laws

A distinct tier of primary legislation located between ordinary statutes and the Constitution, reserved for regulating fundamental matters specified in the constitutional text.

Legal custom

An unwritten rule of law established through long, continuous, and general public practice ($usus$) paired with the subjective belief that compliance is legally mandatory ($opinio\,juris$).

Legal doctrine

The body of published academic treatises, analytical commentaries, and scholarly articles by jurists that systematize, explain, and critically analyze positive law.

Proportionality test

A three-part judicial review mechanism evaluating whether a restriction on a right is justified by assessing its suitability, necessity, and proportionality in the strict sense.

Soft law

Non-legally binding instruments (such as recommendations, declarations, codes of conduct, and model guidelines) that exert practical normative influence on behavior.

Monism

A theoretical model regarding international law and domestic law as forming a single, unified legal system, allowing ratified treaties to automatically take direct domestic effect.

Dualism

A theoretical model viewing international law and domestic legal orders as completely separate systems, requiring an international treaty to be incorporated via domestic legislation.

Jus cogens

Peremptory norms of general international law from which no derogation is permitted by any sovereign state, rendering any conflicting treaty void.

Direct effect (EU law)

The landmark legal doctrine established by the CJEU allowing private individuals and entities to invoke clear, precise, and unconditional EU law provisions directly before domestic courts.

Supremacy of EU law

The doctrine established by the CJEU stating that European Union law takes precedence over any conflicting provisions of national domestic law, including national constitutions.

Lex superior

The hierarchical conflict-of-laws rule establishing that a legal rule of higher institutional rank overrides a contradictory norm of lower rank.

Lex specialis

The interpretive canon establishing that, between conflicting legal provisions of the same rank, a specific regulation takes priority over a general provision.

Lex posterior

The temporal conflict-of-laws principle dictating that, between two conflicting legal rules possessing equivalent institutional rank, the more recently enacted norm prevails.

Legal norm

A general, abstract, and binding rule of conduct adopted or recognized by the state, whose enforcement can be guaranteed through state coercive power.

Logical-legal structure

The internal conceptual architecture of a legal norm, typically broken down into three functional elements: the hypothesis, the disposition, and the sanction.

Technical-legislative structure

The physical, textual division and layout of legal provisions as drafted in published laws, including chapters, articles, and paragraphs.

Hypothesis (of a legal norm)

The structural element of a legal norm defining the factual or legal conditions and circumstances under which the rule applies, answering the question 'in what situation?'.

Disposition

The substantive core of a legal norm specifying the mandatory, permitted, or prohibited conduct demanded of its addressees, answering 'what must be done?'.

Mandatory (onerative) norm

A classification of legal norms characterized by a disposition that imposes a positive legal duty requiring the addressee to perform an action.

Prohibitive norm

A legal norm characterized by a disposition that commands negative forbearance, strictly forbidding the addressee from executing a specific conduct.

Permissive norm

A legal norm conferring discretionary legal entitlement or choice, enabling a subject to perform an act without legally compelling them to do so.

Imperative norm

A compulsory statutory norm that applies unconditionally and cannot be derogated from, altered, or excluded by contractual agreement of the parties.

Default (suppletive) norm

A statutory norm that governs a legal relationship only when the contracting parties have not expressly agreed upon an alternative rule in their contract.

Sanction (of a legal norm)

The structural element of a norm setting out the unfavorable legal consequences or punitive measures triggered when the disposition is breached.

Nullity

A civil law sanction that deprives a legal act or contract of all legal effects because it was concluded in violation of statutory validity requirements.

Positive sanction

A prospective legal instrument offering financial, regulatory, or administrative rewards and incentives designed to encourage compliance and desirable behavior.

Negative sanction

A retrospective punitive consequence (such as a fine, imprisonment, or damages) imposed to punish non-compliance with a legal norm.

Declaratory norm

A legal provision that articulates foundational values, constitutional principles, or official statuses without prescribing concrete sanctions or behavioral obligations.

Empowering norm

A legal rule conferring formal legal powers, rights, or institutional competence to act, adopt rules, or create contracts without imposing an obligation to do so.

Expressio unius est exclusio alterius

A canon of legal interpretation meaning 'to express one thing is to exclude another', presuming that an explicit list of items deliberately excludes those omitted.