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Interpretation of penal and taxing statutes

Interpretation of Statutes and Principles of Legislation · Unit I · Topic 3 of 20 · 7 min read

Why penal and taxing laws are construed strictly, what strict construction actually means, the presumption of mens rea and when it is excluded, the charging section and exemptions in tax law, and the adulterated-food problem.

On this page
  1. 1. Why penal statutes are construed strictly
  2. 2. What strict construction means
  3. 3. Mens rea in statutory offences
  4. 4. Taxing statutes: the classic statement
  5. 5. The principles, in order
  6. 6. Problem
  7. How this is examined
Cases checked to exist. Read the judgment before quoting a holding.

Every case cited here has been checked to exist — the citation resolves and names the right parties. The propositions attributed to each case have not been verified line by line against the judgment. Case names link through to the full judgment: read it before quoting a holding in an examination answer, and never carry a proposition from notes into court on trust.

The examinable core. Strict construction is set every year: “Penal statutes should be construed strictly and benefit of doubt should go to the accused” (June 2025), “Explain the principles of interpretation of taxing statutes” (February 2025 and January 2026), “How is mens rea treated in interpreting statutory offences?” (February 2025), and a problem on conviction without guilty knowledge under the food adulteration law (June 2025). One idea runs through all of them: where the State takes away liberty or property, it must do so in clear words.

1. Why penal statutes are construed strictly

2. What strict construction means

Strict construction does not mean that the narrowest possible meaning is given to every word, or that the purpose of the Act is ignored. It means that if, after the ordinary rules are applied, two reasonable constructions remain, the court adopts the one that favours the accused. The leading statement is in Tolaram Relumal v. State of Bombay, 1954 INSC 62, AIR 1954 SC 496. Section 18(1) of the Bombay Rents, Hotel and Lodging House Rates Control Act, 1947 penalised a person who, in consideration of the grant of a lease, received a premium. The accused had taken money for a lease of premises still under construction, and no lease had been granted. The Court held that where two reasonable constructions of a penal provision are possible, the court must lean towards the one that exempts the subject from penalty; it would not stretch the words to cover an agreement for a future lease.

The limit is that the court will not adopt a strained reading to let an offender escape, nor defeat the plain object of the law. Strictness is a tie-breaker, not a licence to rewrite.

3. Mens rea in statutory offences

The starting point is the presumption that a guilty mind is an essential ingredient of every offence unless the statute excludes it, expressly or by necessary implication (Sherras v. De Rutzen, 1895; Sweet v. Parsley, House of Lords, 1969). The presumption is strongest for serious crimes carrying stigma and long imprisonment. It is weaker for regulatory or “public welfare” offences: food safety, weights and measures, pollution, foreign exchange, where the object of the law would be defeated if the prosecution had to prove knowledge in every case.

Factors the court weighs in deciding whether mens rea is excluded:

Two Supreme Court cases mark the strict-liability end.

4. Taxing statutes: the classic statement

Rowlatt J.'s dictum in Cape Brandy Syndicate v. Inland Revenue Commissioners (King's Bench, 1921) is the one to quote: in a taxing Act one has to look merely at what is clearly said; there is no room for intendment; there is no equity about a tax; there is no presumption as to a tax; nothing is to be read in, nothing is to be implied; one can only look fairly at the language used.

The Supreme Court adopted the same approach in A.V. Fernandez v. State of Kerala, 1957 INSC 29, AIR 1957 SC 657: if the person sought to be taxed comes within the letter of the law, he must be taxed however great the hardship; if he does not, he is free, however apparently within the spirit of the law the case may seem to be.

5. The principles, in order

6. Problem

Rajesh, a shopkeeper, was convicted for contravening section 7 of the Prevention of Food Adulteration Act, 1954, although he did not know that the article he sold was adulterated. He challenges the conviction on the ground that he had no guilty mind.

Issue. Whether mens rea is an ingredient of the offence of selling adulterated food.

Law. Mens rea is presumed unless excluded expressly or by necessary implication. It is readily held excluded in public welfare legislation, where the object is to protect the public and proof of knowledge would defeat the law. Sarjoo Prasad held that section 7 creates an offence of strict liability; Mayer Hans George states the approach.

Application. The 1954 Act was enacted to protect public health. Section 7 is cast in absolute terms (“no person shall… sell”) and does not use “knowingly”. If a seller could escape by pleading ignorance, very few prosecutions would succeed. Strict construction does not help Rajesh: there is no second reasonable reading of section 7 that requires knowledge.

Conclusion. The conviction stands. One more sentence earns marks: the 1954 Act has since been repealed by the Food Safety and Standards Act, 2006 (section 97 and the Second Schedule). Under that Act the seller of unsafe food is punishable under section 59, but section 80(B) now allows a defence of due diligence: that the accused took all reasonable precautions and exercised all due diligence to prevent the offence. A seller in Rajesh's position today could raise that defence.

How this is examined

For the penal-statutes essay: reasons for strictness, the meaning of strict construction (Tolaram Relumal), its limits, then mens rea (Sherras, Mayer Hans George, Sarjoo Prasad). For taxing statutes: Cape Brandy, Fernandez, then the six principles with Mathuram Agrawal, Dilip Kumar, Teja Singh and Vatika. The comparison the examiner likes is that both kinds of statute are construed strictly for the same reason, and that strictness yields to clear words in both.

Now try the real questions: Interpretation of Statutes and Principles of Legislation past question papers.