Indian Poison Laws: Poison Act 1919 and Drugs and Cosmetics Act

The Poison Act 1919 was enacted by the Imperial Legislative Council and continues in force under Article 372 of the Constitution. It has only seventeen sections and no schedule of its own. The substantive scheme is short. Section 2 empowers the state government to regulate the possession for sale, and the sale, of any substance specified by notification. Section 3 empowers the state government to regulate import. Section 4 lets the state make rules on licensing, labelling, conditions of sale, the maintenance of registers, and the inspection of premises. Section 6 makes contravention an offence punishable with imprisonment up to three months, or a fine up to five hundred rupees, or both, and a heavier punishment of six months on a second conviction.

Because the Act delegates the schedule entirely to the states, what counts as a "poison" varies by state. The substances most commonly notified in the State Poisons Rules across India are mercury and its compounds, arsenic and its compounds, hydrocyanic acid and cyanide salts, organophosphate concentrates (parathion, monocrotophos), strychnine, oxalic acid, phosphorus, and a long list of mineral acids and alkalis at concentration cut-offs. Each notified state list mirrors the others closely but is not identical. The Delhi Poison Rules, the Maharashtra Poison Rules and the Tamil Nadu Poison Rules differ in the specific concentration thresholds for certain industrial chemicals.

The license categories under the typical state Poison Rules are three: a Form 1 licence for general retail sale, a Form 2 licence for wholesale, and a Form 3 licence for use in a trade or profession (electroplating, photography, leather, pest control). A licensee must keep a Form 4 register of sales recording the name and address of the purchaser, the substance and quantity sold, the purpose stated, and the signature of the purchaser. The register is open to inspection by any officer authorised by the state government, which in practice means the Drug Inspector or the local police.

The Drugs and Cosmetics Act 1940 is the central statute. The Drugs and Cosmetics Rules 1945, framed under Section 33 of the Act, do the operational work. The Act is divided into chapters covering import (Chapter III), manufacture, sale and distribution (Chapter IV), Ayurvedic, Siddha and Unani drugs (Chapter IVA), and offences (Chapter V). The schedules to the Rules, lettered A through Y, are where a forensic toxicologist and a pharmacist actually look.

The schedules most relevant to forensic toxicology practice, and the ones most frequently examined in defence cross-examination, are H, H1 and X. The 2014 amendment that introduced Schedule H1 was driven by the Indian antimicrobial resistance crisis. The 46 listed substances include third and fourth generation cephalosporins (cefepime, cefpirome), the carbapenems (meropenem, ertapenem), the newer fluoroquinolones (moxifloxacin), most anti-TB drugs (rifampicin, isoniazid, ethambutol, pyrazinamide), and the habit-forming sedatives (alprazolam, diazepam in injectable form, tramadol). A retail chemist must maintain a separate Schedule H1 register recording the prescriber's name and registration number, the patient's name and age, the drug and quantity dispensed, and the date. The register is retained for three years.

Schedule X is the closest the 1940 Act gets to NDPS-style control. The listed substances are psychotropic stimulants and sedatives that were considered abuse-prone enough to need double-lock storage but were not transferred wholesale to NDPS. The retail dispensing rules are stricter than Schedule H: the prescription must be written in duplicate on the prescriber's letterhead, the pharmacist retains one copy for two years, the drug is dispensed only against the original, and the storage cupboard is under double lock with the key held by the registered pharmacist. The Form 41 register for Schedule X is open to inspection by the Drug Inspector and by CDSCO officers.

The NDPS Act 1985 replaced the older Opium Act 1857, the Opium Act 1878 and the Dangerous Drugs Act 1930. It is the principal narcotics statute in India and supplies a very large share of the casework at every state FSL narcotics section. Five provisions are central to forensic practice.

1. Section 2: definitions and gazette quantities
   The Act defines narcotic drug, psychotropic substance, manufactured drug and preparation. The 'small quantity' and 'commercial quantity' figures are not in the statute itself; they are notified by the central government in the Gazette. Examples: opium 25 g (small) and 2.5 kg (commercial); heroin 5 g and 250 g; cocaine 2 g and 100 g; ganja 1 kg and 20 kg; charas/hashish 100 g and 1 kg.
2. Section 8: the prohibition
   Section 8 prohibits the production, manufacture, possession, sale, purchase, transport, warehousing, use, consumption, import inter-State, export inter-State, import into India, export from India or transhipment of any narcotic drug or psychotropic substance, except for medical and scientific purposes and in the manner provided.
3. Section 21: graded punishment
   Section 21 (and the parallel Section 22 for psychotropics) grades the punishment by quantity: small quantity attracts up to one year, intermediate up to ten years and a fine, commercial quantity ten to twenty years with a minimum fine of one lakh rupees. The grading was introduced by the 2001 amendment.
4. Section 27A: financing trafficking
   Section 27A punishes financing illicit traffic or harbouring offenders with rigorous imprisonment of ten to twenty years and a fine. The provision is increasingly invoked alongside Prevention of Money Laundering Act 2002 prosecutions.
5. Section 41 to 50: search and seizure
   Sections 41 to 50 codify the search-and-seizure powers. Section 50 is the cardinal procedural safeguard: before searching a person, the empowered officer must inform the person of the right to be searched in the presence of a gazetted officer or a magistrate. Non-compliance with Section 50 has been treated as fatal to the prosecution since State of Punjab v Baldev Singh (1999).
6. Section 64A: immunity for addicts
   Section 64A allows an addict charged with consumption of a small quantity to volunteer for de-addiction and treatment, in which case the prosecution is dropped. The provision is rarely invoked in practice.

Two Supreme Court judgments are essential. State of Punjab v Baldev Singh (1999) is the Constitution Bench that read Section 50 as a mandatory procedural safeguard. The empowered officer must inform the suspect of the right to be searched before a gazetted officer or a magistrate; failure to do so vitiates the search and makes the recovery inadmissible. The principle has been refined in subsequent benches (Vijaysinh Chandubha Jadeja v State of Gujarat (2011), among others) but the core position has held.

Tofan Singh v State of Tamil Nadu (2020) is the more recent and arguably more consequential ruling. A three-judge bench held that the confessional statement of an accused recorded by an officer empowered under Section 53 of NDPS (typically an NCB or DRI officer) is not admissible against the maker. The Court held that such officers are "police officers" for the purposes of the bar in Section 25 of the Indian Evidence Act 1872 (now Section 23 of the Bharatiya Sakshya Adhiniyam 2023). Before Tofan Singh, prosecutions routinely relied on a Section 67 statement recorded by the empowered officer; after Tofan Singh, that route is closed.

The Insecticides Act 1968 regulates the import, manufacture, sale, transport, distribution and use of insecticides to prevent risk to human beings and animals. The statute is administered by the Central Insecticides Board and Registration Committee, with state-level Insecticide Inspectors. Three schedules attached to the Rules 1971 carry the operative lists: a registered-insecticides schedule, a packaging and labelling schedule (with the colour-coded toxicity triangle: red for extremely toxic, yellow for highly toxic, blue for moderately toxic, green for slightly toxic), and an antidote schedule.

The Anupam Verma Committee, constituted by the Ministry of Agriculture in 2013 to review 66 insecticides flagged as banned or restricted in other jurisdictions but still registered in India, submitted its report in 2015 and a follow-up in 2018. The Ministry acted in stages: a 2018 order banned 18 insecticides outright (including alachlor, dichlorvos for household use, methyl parathion concentrate above 50 percent, phorate, triazophos for certain crops). A draft 2020 order proposed banning a further 27 substances (chlorpyrifos, monocrotophos, mancozeb, oxyfluorfen among them) but the final notification has been repeatedly stayed and remains contested.

The forensic relevance is direct. Monocrotophos and chlorpyrifos remain the two organophosphates most frequently identified in Indian post-mortem viscera (covered in the pesticide poisoning topic). Aluminium phosphide, sold as Celphos or Quickphos for grain fumigation under the Insecticides Act, is the leading suicide-by-poisoning agent in Punjab and Haryana. Endosulfan was banned in 2011 by Supreme Court order after the Kasaragod (Kerala) cluster; the ban survived a series of industry challenges.

The poison and drug statutes regulate the supply side. The criminal law overlay punishes the misuse. The Bharatiya Nyaya Sanhita 2023 replaced the Indian Penal Code 1860 with effect from 1 July 2024, and the relevant sections renumber. The Bharatiya Sakshya Adhiniyam 2023 (BSA) replaced the Indian Evidence Act 1872 and decides what the chemical examiner's report looks like in court.

The most often-cited section in homicidal poisoning prosecutions used to be Section 328 IPC ("causing hurt by means of poison etc with intent to commit an offence"). The renumbered provision is Section 125 of the BNS. The elements are the same: the accused administered to or caused to be taken by another person any poison, stupefying, intoxicating or unwholesome drug, with intent to cause hurt, or to facilitate the commission of an offence, knowing the act likely to cause hurt. The chemical examiner's report identifying the poison in the viscera or in the food residue is the linchpin of such a prosecution. After the 2023 transition, the report comes into court under BNSS Section 329 (the renumbered Section 293 CrPC) and is read along with the expert's deposition under BSA Section 39.

Under BSA Section 63, any electronic copy associated with the case (a CCTV clip from the chemist shop showing the sale, a WhatsApp screenshot of the order, an Excel sheet of the H1 register) is admissible only with the Section 63 certificate. The post-Anvar / post-Khotkar jurisprudence on the certificate, set out in our BSA topic, applies in poison cases just as it does in any other.

Take a chemist shop in Karol Bagh, Delhi, or Dadar, Mumbai. The licence on the wall is Form 20 (for retail sale of drugs other than Schedule X) and Form 21 (for retail sale of restricted drugs including Schedule X), both issued under the Drugs and Cosmetics Rules 1945 by the State Drugs Controller. A registered pharmacist registered with the State Pharmacy Council must be on the premises during business hours; the registration number is displayed beside the licence.

At the counter, the dispensing flow runs in tiers. A Schedule G item (a hypoglycaemic, an antihistamine) is sold over the counter with the caution legend on the carton; no register entry is required, although best practice is to note the sale in the daily sales register. A Schedule H item (most antibiotics, sedatives, antipsychotics) is sold only against a registered medical practitioner's prescription, and the prescription is entered in the prescription register with the prescriber's name, registration number and address. A Schedule H1 item (a third-generation antibiotic, an anti-TB drug, alprazolam) goes one step further: the dispensing is logged in the separate H1 register, the register is retained for three years, and a photocopy of the prescription is taken if the chemist is following industry best practice.

A Schedule X item is the strictest tier under the 1940 Act. The cupboard is under double lock with the key held by the registered pharmacist. The prescription is written in duplicate on the prescriber's letterhead; the pharmacist keeps one copy for two years. A Form 41 register records each Schedule X transaction. The Drug Inspector inspects the cupboard, the register and the duplicate prescriptions on routine visits. A narcotic preparation (codeine syrup above the schedule threshold, morphine, methadone) sits one tier above Schedule X under the NDPS Act; only a chemist holding the additional state narcotics licence can dispense it, and the dispensing register is open to NCB and state excise inspection.

The 2023 New Drugs and Clinical Trials Rules, notified by the Ministry of Health and Family Welfare in 2019 and refined since, separated out the new drug approval process and the clinical trial regulation from the body of the 1945 Rules. Clinical trials are now governed by these standalone rules, with an expanded role for the Subject Expert Committees and the Central Drugs Standard Control Organization. Earlier materials referred only to Schedule Y of the 1945 Rules; the 2023 rules supplement Schedule Y and are now the operative framework for clinical trial protocols, informed consent, and adverse-event reporting.

The Indian Pharmacopoeia Commission at Ghaziabad publishes the Indian Pharmacopoeia, the official compendium of drug standards. Each substance entry specifies identity tests, assay methods, impurity limits and storage conditions. A drug failing IP standards is "not of standard quality" under the 1940 Act and may attract action under Sections 17, 17A and 18. CDSCO in Delhi, headed by the Drugs Controller General of India, is the federal regulator; state drug controllers run the field operations.