⚖️ Law Dictionary
2056 terms · constitutional, criminal, contract law & more
Showing 1–50 of 2,056 terms · page 1 of 42
Audi Alteram Partem
Natural Justice'Hear the other side' — fundamental rule of natural justice requiring notice and opportunity of being heard.
Nemo Judex in Causa Sua
Natural Justice'No one should be a judge in his own cause' — rule against bias.
Habeas Corpus
Constitutional LawA writ requiring a detained person be brought before a court to determine whether their detention is lawful. Latin: 'you shall have the body.' Rooted in the Magna Carta 1215 and codified in the Englis
Mens Rea
Criminal LawThe mental element of a crime — the guilty mind. Includes intent, knowledge, recklessness, and criminal negligence.
Actus Reus
Criminal LawThe guilty act — the physical element of a crime. Latin for 'guilty act.' Must be voluntary and cause the prohibited harm.
Precedent (Stare Decisis)
JurisprudenceThe doctrine that courts are bound by prior decisions of higher courts on the same point of law ('stare decisis' — stand by what has been decided). It ensures consistency, predictability, and fairness in the application of law. Binding precedent comes from higher courts; persuasive precedent (from other jurisdictions or lower courts) can be followed but need not be.
Ultra Vires
Administrative Law / Company LawAct exceeding the legal power or authority of a person or body. 'Beyond the powers.'
Fundamental Rights
Constitutional LawRights guaranteed by Part III (Articles 12–35) of the Indian Constitution that are enforceable against the State. They include the right to equality (Articles 14–18), right to freedom (Articles 19–22), right against exploitation (Articles 23–24), right to freedom of religion (Articles 25–28), cultural and educational rights (Articles 29–30), and right to constitutional remedies (Article 32). These rights are justiciable — any violation can be challenged in the Supreme Court or High Courts.
Judicial Review
Constitutional LawThe power of courts to examine the actions of the legislative and executive branches and determine their constitutionality.
Due Process of Law
Constitutional LawThe constitutional guarantee that no person shall be deprived of life, liberty or property without fair legal procedures. Substantive and procedural components.
Res Judicata
Civil ProcedureThing adjudged — matter finally decided cannot be relitigated.
Promissory Estoppel
Contract LawA doctrine that prevents a party from going back on a clear and unambiguous promise where the promisee has relied on that promise to their detriment. Even without formal consideration (the technical requirement of contract formation), a promisor will be held to their promise if the promisee changed their position in reliance on it. In India it is applied against the government where it would otherwise exercise its rights contrary to equity.
Tort
Tort LawA civil wrong (as opposed to a crime) that causes harm or loss to another person, for which the law provides a remedy usually in the form of damages. Common torts include negligence, defamation, trespass, nuisance, and false imprisonment. Unlike contract law, tort liability arises from duties imposed by law, not by agreement between parties.
Contract
Contract LawA legally enforceable agreement between two or more parties. Under the Indian Contract Act, 1872, a valid contract requires: offer, acceptance, lawful consideration, capacity of parties, free consent, and a lawful object. Contracts may be express (written or oral) or implied by conduct.
Writ of Mandamus
Constitutional LawA writ issued by a superior court commanding a public authority, lower court, or official to perform a public duty imposed on them by law. It is issued when the authority refuses or neglects to perform a mandatory legal duty. In India, mandamus can be issued by the Supreme Court (Article 32) or High Courts (Article 226).
Rule of Law
Constitutional LawThe principle that all persons and institutions — including governments and rulers — are subject to and accountable to law that is fairly applied and enforced. A.V. Dicey identified three elements: (1) supremacy of law — no punishment except for breach of law; (2) equality before law — everyone subject to ordinary courts; (3) constitutional law is the result of ordinary law, not its source. The Rule of Law is a basic structure feature of the Indian Constitution.
Article 21 — Right to Life and Personal Liberty
Constitutional LawArticle 21 of the Indian Constitution states: 'No person shall be deprived of his life or personal liberty except according to procedure established by law.' It is the most litigated provision of the Indian Constitution. Through judicial expansion, it now encompasses: right to livelihood, right to privacy, right to health, right to education (until 14), right to a clean environment, right to free legal aid, right against solitary confinement, right to a speedy trial, right to sleep on pavements, and much more.
Locus Standi
Civil Procedure / Constitutional LawThe right of a party to appear and be heard before a court. Latin: 'place of standing.'
Public Interest Litigation (PIL)
Constitutional LawLitigation filed in a court of law for the protection of public interest, pollution, terrorism, road safety, constructional hazards etc.
Separation of Powers
Constitutional LawThe division of governmental authority into legislative, executive and judicial branches, each acting as a check on the others. Theorised by Montesquieu.
Right to Equality (Article 14)
Constitutional LawArticle 14 of the Indian Constitution guarantees: 'The State shall not deny to any person equality before the law or equal protection of the laws within the territory of India.' Equality before law (British concept — no man is above the law) and equal protection of the laws (American concept — equals must be treated equally, unequals may be treated unequally) form its two pillars. The right has been expanded to prohibit arbitrary state action through the doctrine of 'reasonable classification.'
Contempt of Court
Court ProcedureDisobedience to or disrespect for a court. Civil (non-compliance) or criminal (interference with justice).
Basic Structure Doctrine
Constitutional LawParliament cannot amend Constitution to destroy basic features — Kesavananda Bharati.
Delegated Legislation
Administrative LawRules, regulations, by-laws made by executive under authority delegated by legislature.
Right to Information
Constitutional LawThe right of citizens to access information held by public authorities, recognised in India under the Right to Information Act, 2005 (RTI Act). It flows from the fundamental right to freedom of speech and expression (Article 19(1)(a)) and the right to life (Article 21). The RTI Act requires public authorities to proactively disclose information and respond to information requests within 30 days. Exemptions exist for national security, personal privacy, and cabinet deliberations.
Bail
Criminal LawRelease of an accused on security (monetary or personal) pending trial. Regular, anticipatory, or interim.
Anticipatory Bail
Criminal LawDirection to release a person on bail before arrest. Section 438 CrPC.
First Information Report (FIR)
Criminal LawThe first written document recorded by police when information about a cognizable offence is received. Under Section 154 CrPC (Section 173 BNSS), police are obligated to register an FIR — they cannot refuse. It sets criminal law in motion and is the foundation of the prosecution case. A copy must be given free of charge to the informant.
Cognizable Offence
Criminal LawAn offence in which police have the power to arrest without a warrant, investigate without Magistrate permission, and register an FIR. Generally serious offences — murder, rape, robbery, kidnapping, dacoity. The Schedule to the CrPC (and BNSS) specifies which offences are cognizable.
Chargesheet
Criminal LawThe final report submitted by police to the Magistrate after completion of investigation, stating sufficient evidence exists to prosecute the accused. Governed by Section 173 CrPC (Section 193 BNSS). Must be filed within 60 days (offences up to 10 years) or 90 days (death/life/over 10 years imprisonment). Failure entitles the accused to default bail as a matter of right under Section 167(2) CrPC.
Offer and Acceptance
Contract LawTwo essential elements of a valid contract. An offer (proposal) is a definite expression of willingness to be bound on specific terms, made with intention it shall become binding upon acceptance. Acceptance is the absolute and unconditional agreement to all terms. Under Sections 2(a) and 2(b) of the Indian Contract Act, 1872, acceptance must be communicated. A counter-offer rejects the original offer.
Consideration
Contract LawSomething of value given in exchange for a promise. Must move at the desire of the promisor. Section 2(d) ICA 1872.
Breach of Contract
Contract LawFailure to perform any term of a contract without legal excuse. Actual or anticipatory.
Specific Performance
Contract LawEquitable remedy compelling performance of contractual obligations. Granted where damages are inadequate. Specific Relief Act 1963 (India).
Void Agreement
Contract LawAn agreement not enforceable by law from the very beginning — a complete nullity with no legal effect. Section 2(g) of the Indian Contract Act, 1872 defines it. Examples: agreements without consideration, in restraint of trade (Section 27), in restraint of marriage, by incompetent parties (minors, persons of unsound mind), and agreements with unlawful objects (Section 23).
Voidable Contract
Contract LawAgreement enforceable at the option of one party but not the other — e.g., contracts induced by coercion.
Injunction
Civil LawCourt order requiring a party to do or refrain from doing a specific act. Temporary, permanent, or mandatory.
Decree
Civil LawFormal expression of adjudication conclusively determining rights of parties — CPC Section 2(2).
Limitation Period
Civil LawThe maximum time period within which a legal action must be brought after the cause of action arises. After expiry, the right to sue is extinguished. Governed by the Limitation Act, 1963. Common periods: 3 years for contract suits, 12 years for suits on immovable property, and 1 year for certain tort claims. Extensions available in cases of fraud, mistake, disability, or acknowledgment of debt.
Adverse Possession
Property LawAcquisition of title by open, continuous, hostile possession for a statutory period (12 years India, 12 years UK).
Easement
Property LawRight enjoyed over another's land — e.g., right of way, light, support. Indian Easements Act 1882.
Mortgage
Property LawTransfer of interest in specific immovable property as security for a loan. Transfer of Property Act 1882 (India).
Sale Deed
Property LawInstrument transferring absolute ownership from seller to buyer — Section 54 TPA.
Gift Deed
Property LawVoluntary transfer of property without consideration — Section 122 TPA; requires registration.
Lease
Property LawTransfer of right to enjoy property for time, in consideration of rent or premium — Section 105 TPA.
Retrenchment
Labour LawThe termination of employment of a workman by the employer for any reason other than as a disciplinary measure. Defined under Section 2(oo) of the Industrial Disputes Act, 1947. Requires: one month's notice (or wages in lieu), retrenchment compensation at 15 days' wages per year of service, and government intimation. The 'last come, first go' (LIFO) principle must be followed unless there is a valid reason to deviate.
Gratuity
Labour LawA statutory lump sum payable by an employer to an employee as a reward for long service, paid on retirement, resignation, death, or disablement. Governed by the Payment of Gratuity Act, 1972. Minimum 5 years of continuous service required (waived for death or disablement). Formula: 15 days' wages (last drawn) per year of service. Maximum: Rs. 20 lakh (revised 2018).
Burden of Proof
Evidence LawObligation to prove an assertion. Falls on the party making the claim. Indian Evidence Act 1872.
Hearsay Evidence
Evidence LawOut-of-court statement offered to prove the truth of its contents. Generally inadmissible with exceptions.
Confession
Evidence LawAn admission by an accused that they committed the offence. Must be voluntary — not obtained by threat, inducement, or promise. Under Section 25 of the Indian Evidence Act, a confession to a police officer is inadmissible. Under Section 26, a confession in police custody is inadmissible unless made before a Magistrate. A judicial confession under Section 164 CrPC is the most reliable and admissible form.
