The short answer
An NDPS case at an airport is decided by three things: the quantity (small, intermediate or commercial), the integrity of the search and seizure record, and, for commercial quantities, the section 37 bail bar. The first task is to get the seizure memo, the sampling record and the test report, and to read them against the procedure the Act requires.
NDPS cases are far more serious than Customs baggage cases. Commercial-quantity offences carry a minimum of ten years. The defence therefore starts on the first day, with the paperwork, not at trial.
How airport NDPS cases arise
- Baggage finds. Drugs found in a suitcase, often in a false bottom, food packets or toiletries. The question of whose bag it is, and who packed it, can be decisive.
- Swallowed or concealed capsules found by body scan or medical examination, usually arranged through a Magistrate and a hospital.
- "Carry this for me" bags handed over by an acquaintance or an agent. Knowledge is the central issue.
- Prescription medicines containing psychotropic substances, carried without a prescription or in quantities beyond personal use.
- Foreign nationals recruited as couriers, who face language, consular and bail-condition problems on top of the case itself.
The arresting agency is usually Customs (whose officers are empowered under the NDPS Act), the Narcotics Control Bureau or the DRI.
Quantity decides almost everything
The NDPS Act sets punishment by quantity bands notified for each substance. For commercial quantity, an offence of illegal import or export under section 23 carries 10 to 20 years' rigorous imprisonment and a fine of ₹1 lakh to ₹2 lakh. Intermediate quantities carry up to ten years. The weight counted is the weight of the whole mixture, including neutral substances, not just the pure drug.
| Substance | Small quantity (up to) | Commercial quantity (from) |
|---|---|---|
| Heroin | 5 g | 250 g |
| Cocaine | 2 g | 100 g |
| Charas / hashish | 100 g | 1 kg |
| Ganja | 1 kg | 20 kg |
| MDMA | 0.5 g | 10 g |
| Methamphetamine | 2 g | 50 g |
Source: Central Government notification of small and commercial quantities under the NDPS Act, as reproduced by the Department of Revenue.
Search and seizure safeguards
- Personal search (section 50). Before searching a person, the officer must tell them of the right to be searched in the presence of a Gazetted Officer or a Magistrate. Non-compliance makes the recovery from the person unreliable. Section 50 covers the person, not bags or baggage.
- Public place (section 43). An airport is a public place, so search and seizure there can be made without a warrant. The record of what was found, where and by whom must still be made contemporaneously.
- Inventory and sampling (section 52A). Seized drugs are to be inventoried, photographed and sampled under the supervision of a Magistrate. Gaps in the chain between seizure, sealing, sampling and the laboratory are the most common grounds for doubt.
- Reports (sections 42 and 57). Officers must report arrests and seizures to their superior within the statutory time.
Bail and the section 37 bar
For commercial quantities, and for offences under sections 19, 24 and 27A, section 37 allows bail only if the court is satisfied that there are reasonable grounds to believe the accused is not guilty and is not likely to offend while on bail, after hearing the Public Prosecutor. Below commercial quantity, the ordinary principles of bail apply.
- Procedural breaks in the search, sampling or chain of custody can supply the "reasonable grounds" that section 37 demands.
- Long custody. Bail has been granted despite section 37 where the trial had not progressed and custody had become prolonged.
- Default bail. For the more serious NDPS offences, the investigation period is 180 days, extendable up to one year on the Public Prosecutor's report (section 36A(4)). If no complaint is filed in time, the right to default bail arises (BNSS section 187).
Statements under section 67
Officers investigating under the NDPS Act are "police officers", so a confessional statement recorded under section 67 cannot be used to convict (now BSA section 23). This is the opposite of the Customs Act position, and it matters when the same officers run both a Customs and an NDPS case.
Foreign nationals
- The consulate should be informed, and an interpreter is needed for statements, the search notice under section 50, and court.
- Bail conditions must be ones a foreign national can meet. A condition requiring the accused to share a Google Maps pin is not permissible, and an embassy assurance is not mandatory. If the embassy does not respond within a week, the condition should be dropped and replaced by passport deposit and reporting.
- Immigration consequences under the Immigration and Foreigners Act, 2025 run in parallel. Visa status and restrictions on leaving India need to be planned alongside bail.
How we assist
- Early scrutiny of the seizure memo, the section 50 notice, the section 52A record and the test report.
- Bail applications under section 37, default bail, and bail on grounds of delay.
- Trial defence focused on knowledge, possession and the chain of custody.
- Foreign nationals: consular coordination, interpreters and workable bail conditions.