In short. In a trap case under the Prevention of Corruption Act 1988, the prosecution must prove both demand and acceptance of an undue advantage by the public servant. Recovery of marked notes alone is not enough. No prior approval under Section 17A is needed for an on-the-spot arrest, but sanction under Section 19 is needed before the special judge takes cognizance, and bail is decided under the ordinary BNSS rules.
Trap cases are the most common kind of corruption prosecution in Delhi NCR. They are fast at the start (a complaint, a day or two of verification, a trap, an arrest) and slow at the end, because the trial before the special judge can take years. Almost everything that decides the trial is created in the first few hours: the complaint, the recorded conversation, the pre-trap memo, the hand wash, the recovery memo and the statements of the shadow witness and the independent witness.
This post is about trap cases only: how the trap is laid, what the law requires, and what each side should do. Disproportionate assets cases work very differently and are covered in our post on a disproportionate assets case against a public servant. For the wider picture of corruption prosecutions, special courts and Section 17A, see our page for an anti-corruption lawyer in Delhi.
- Main offence
- Section 7, PC Act: 3 to 7 years and fine
- Bribe giver
- Section 8, PC Act: up to 7 years, with protection for a compelled giver who reports within 7 days
- Who sets the trap
- CBI for central employees; Delhi ACB for Delhi government employees; state vigilance units in UP
- Trial court
- Special judge under the PC Act (Rouse Avenue in Delhi)
- Prior approval
- Not needed for an on-the-spot arrest (proviso to Section 17A)
- Sanction to prosecute
- Section 19, needed before cognizance
What is a trap case under the Prevention of Corruption Act?
A trap case is a prosecution under Section 7 of the Prevention of Corruption Act 1988 (PC Act) in which the agency catches the public servant in the act of accepting a bribe. The legal offence is the same as in any bribery case: a public servant obtaining, accepting or attempting to obtain an 'undue advantage' to perform a public duty improperly, or to forbear from performing it. What makes it a trap is the method of proof. Instead of reconstructing a past bribe from witnesses and bank records, the agency arranges for the bribe to be paid in front of its own officers and independent witnesses.
The 2018 amendment rewrote the bribery offences. Section 7 now covers the public servant who takes or attempts to take an undue advantage, with a sentence of three to seven years and fine. Section 7A covers middlemen who take money to influence a public servant. Section 8 makes giving a bribe a separate offence, which it was not in the same clear way before 2018. These changes matter in trap cases because they affect both the accused and the person who complained.
The typical accused in a trap case is a patwari, a clerk in a sub-registrar's office, a junior engineer, a police officer, a tax inspector, an official at a regional transport office or a bank officer in a public sector bank. The amounts are often small. That does not make the case small: a conviction carries a minimum sentence, and the arrest itself usually leads to suspension.
Who sets the trap: CBI, Delhi ACB or state vigilance?
Which agency lays the trap depends on who employs the public servant. The Central Bureau of Investigation (CBI) handles employees of the Central Government, central public sector undertakings and public sector banks. In Delhi, the Anti-Corruption Branch (ACB) of the Delhi government handles employees of the Delhi government and its bodies. In Uttar Pradesh, which covers Noida and Ghaziabad, the state's anti-corruption and vigilance units deal with state employees, and the CBI deals with central employees posted there.
This matters for more than the letterhead. The agency decides which special court tries the case. In Delhi, CBI and ACB cases are tried by special judges at the Rouse Avenue court complex. CBI cases from western Uttar Pradesh go to the special CBI courts at Ghaziabad, and state anti-corruption cases go to the special anti-corruption courts in UP. Our page on CBI cases explains how the CBI registers and investigates cases more generally; this post stays with the trap itself.
How is a bribery trap laid, step by step?
Agencies follow their own manuals, and the order of steps is broadly the same everywhere. Each step should leave a paper trail, and the defence later reads that trail line by line.
The complaint
A person tells the agency that a named public servant has demanded money for a specific piece of work, such as releasing a payment, registering a document or not filing a challan. The complaint is written down and signed, usually with the date and time of the demand and the amount.
Verification of the demand
Before laying a trap, the agency tries to confirm the demand. The usual method is a recorded phone call or a recorded meeting between the complainant and the public servant, often with a digital voice recorder supplied by the agency. A verification report is prepared.
Pre-trap proceedings
The complainant brings the bribe money. Officers note the number of each currency note in a pre-trap memo, and the notes are smeared with phenolphthalein powder. The effect of the powder is demonstrated to the witnesses: a hand that touches the notes turns a sodium carbonate solution pink.
Shadow and independent witnesses
A 'shadow witness', usually a government employee from another department, accompanies the complainant to see and hear the transaction. Other independent witnesses wait with the trap team. Their independence is one of the first things the defence later tests.
The transaction and the signal
The complainant meets the public servant and pays only when the money is demanded or accepted. A pre-arranged signal, such as a phone call or a gesture, brings in the trap team.
Hand wash and recovery
The officers wash the accused's hands, and sometimes a shirt pocket or a drawer, in sodium carbonate solution. Pink washes are bottled, sealed and sent to the forensic laboratory. The notes are recovered and matched against the pre-trap memo.
Post-trap memo and arrest
A recovery memo or post-trap memo records what happened, who was present and what was seized. The public servant is arrested on the spot, searched, and later produced before the special judge.
The house of the accused is often searched the same day. If substantial unexplained cash or property turns up, a separate disproportionate assets case can follow. That is one reason the first statements given by the family during the search matter.
Which sections apply in a trap case?
These are the provisions that come up in almost every trap case. Section numbers are from the PC Act as amended in 2018.
Section 7, PC Act
Public servant obtaining, accepting or attempting to obtain an undue advantage, with the intention of performing or causing performance of a public duty improperly or dishonestly. Imprisonment of not less than three years, up to seven years, and fine. 'Attempting to obtain' means a bare demand can be enough, even if no money is paid.
Section 8, PC Act
Giving or promising an undue advantage. Up to seven years, or fine, or both. A person compelled to pay is not liable if the matter is reported to the police or an investigating agency within seven days. Section 8(2) also protects a person who pays after informing the agency, to help it investigate, which covers the complainant in a trap.
Section 17A, PC Act
Prior approval of the competent authority is needed before an inquiry or investigation into a recommendation made or decision taken by a public servant in discharge of official functions. The proviso says no approval is needed for the arrest of a person on the spot on a charge of accepting or attempting to accept an undue advantage.
Section 19, PC Act
No court can take cognizance of an offence under Sections 7, 11, 13 or 15 against a public servant without previous sanction of the authority competent to remove that person, subject to the exceptions in the section. The sanctioning authority is expected to decide within three months, which can be extended by one month.
Section 20, PC Act
Once it is proved that the public servant accepted or obtained an undue advantage, the court presumes it was taken as a motive or reward for performing a public duty improperly. The presumption can be rebutted, and it arises only after acceptance is proved. It does not presume the demand.
Does a trap need prior approval under Section 17A?
No, not for the arrest itself. Section 17A, added in 2018, protects public servants from inquiries into their official decisions without the approval of the authority that could remove them. Its proviso expressly excludes cases involving arrest on the spot on a charge of accepting or attempting to accept an undue advantage. A classic trap falls within that exclusion.
The position is less clear when the trap fails, when the case later widens into earlier decisions the officer took, or when other officials are added who were not caught on the spot. If the investigation moves from the trap transaction into, say, the way a tender was awarded months earlier, the defence can ask whether approval was taken for that part. When Advocate B.K. Singh reads a trap chargesheet, he separates the on-the-spot allegation from everything else the agency has added, because the legal protections for each part are different.
What must the prosecution prove in a trap case?
The prosecution must prove two things beyond reasonable doubt: that the public servant demanded an undue advantage, and that he accepted or obtained it. Courts have said many times that recovery of marked notes from the accused, on its own, does not prove the offence. Money can be thrust into a pocket, left on a table or offered as repayment of a private loan. Proof of demand is what turns a recovery into a bribe.
Demand is usually proved through the complainant's evidence, the recorded verification call, and the shadow witness who heard the conversation at the trap. Complainants often turn hostile years later, at the trial. In Neeraj Dutta v State (Govt. of NCT of Delhi) (2022), a Constitution Bench of the Supreme Court held that where the complainant is unavailable or turns hostile, demand and acceptance can still be proved by other evidence, including circumstantial evidence. The court did not dilute the requirement that demand must be proved; it widened the ways of proving it.
Once demand and acceptance are proved, Section 20 shifts the burden: the court presumes the money was a bribe, and the accused has to give an explanation that is probable on the evidence. A bare denial does not rebut the presumption, but a credible explanation backed by documents, such as proof of a genuine loan or a fee that was lawfully payable, can.
Trap evidence: what it is meant to show and what the defence checks
Each piece of trap evidence is meant to prove one link in the chain. Each also has its own common weaknesses.
| Evidence | What it is meant to show | What the defence checks |
|---|---|---|
| Written complaint | That a specific demand was made, for specific work | Date and time, whether the work was actually pending with the accused, any prior enmity or dispute |
| Verification recording | That the accused demanded money in his own words | Whether the voice is identified, whether the words really amount to a demand, the BSA Section 63 certificate, gaps in the recording |
| Pre-trap memo | Which notes were used and that the powder was applied | Signatures, timings, whether the witnesses were present throughout |
| Shadow witness | That the demand was repeated and the money accepted at the trap | Whether the witness actually heard the conversation, distance, whether he is truly independent |
| Hand wash and FSL report | That the accused handled the treated notes | Chain of custody of the sealed bottles, delay in sending them, whether the colour test shows demand at all |
| Recovery memo | Where the money was found and in whose presence | Whether the money was in the hand, pocket, drawer or simply on the table, and who had access |
| Sanction order | That the competent authority applied its mind | Whether the sanctioning authority was competent and saw the full record |
Electronic evidence is now central in trap cases. A recording on a pen drive or a phone needs a certificate under Section 63 of the Bharatiya Sakshya Adhiniyam 2023 (or Section 65B of the old Evidence Act in older cases). Our post on the Section 63 BSA certificate for electronic evidence explains what that certificate must contain.
I have been caught in a trap: what happens in the first 48 hours?
After the trap, the public servant is arrested, taken for a medical examination and produced before the special judge within 24 hours. The agency will usually ask for police custody for a few days to search premises, examine bank accounts and trace any share of the money said to go to others. The defence opposes custody by showing that the money has already been recovered, the documents are already seized and there is nothing left to recover from the person.
For a government employee, the 48-hour line has a separate consequence. Under rule 10(2) of the CCS (CCA) Rules 1965, and similar rules in most services, an employee detained in custody for more than 48 hours is deemed to be suspended from the date of detention. A quick bail application can avoid deemed suspension, though the department may still suspend separately. Our post on suspension rules for government employees explains subsistence allowance, review of suspension and how to challenge a long suspension.
In the first two days, the family should collect the documents that explain the transaction from the accused's side: the file on which the work was pending, any record showing the work was already done or could not lawfully be done, and any earlier dispute with the complainant. They should not contact the complainant or the witnesses. That contact is the commonest ground on which bail is opposed and later cancelled.
Can you get bail in a trap case?
Yes. PC Act offences do not carry special twin conditions for bail of the kind found in the PMLA or the NDPS Act. Bail is decided under the ordinary provisions of the Bharatiya Nagarik Suraksha Sanhita 2023, by the special judge (who sits at Sessions level) under Section 483 BNSS, and if refused, by the High Court. The court looks at the usual factors: the nature of the allegation, whether the investigation needs custody, the risk of tampering with witnesses, and whether the accused will turn up for trial.
In a straightforward trap, where the money is recovered on the spot and the witnesses are mostly government employees or agency officers, the case for continued custody is often weak after the police remand ends. Most people caught in a trap get bail within days or weeks, usually with conditions such as not contacting witnesses and not leaving the country without permission. The guidance in Satender Kumar Antil v CBI (2022) on bail in offences where the accused cooperates is regularly cited. Our bail practice page explains the bail process in more detail.
Anticipatory bail under Section 482 BNSS is rarely relevant in a classic trap because the arrest happens on the spot. It becomes relevant when the trap fails or when the agency later names others, such as a superior officer or a private middleman, who were not present at the trap.
A made-up example: the electricity connection file
Here is a made-up example. Ramesh, a junior engineer in a power distribution body, is handling a new connection for a shop. The shop owner complains to the agency that Ramesh asked for ₹25,000 to clear the file. The agency records a phone call in which Ramesh says 'come to the office tomorrow, bring the amount we discussed'. The next day the shop owner hands over treated notes in Ramesh's cabin, the shadow witness stands near the door, and Ramesh's hand wash turns pink.
On paper this looks finished. Read closely, it may not be. The file shows the connection had already been sanctioned two days before the call, and the shop owner owed ₹25,000 to Ramesh's brother for an unrelated supply of fittings, which is shown by a written receipt and bank messages. The recording does not mention the connection at all. The shadow witness, in his statement, says he could not hear the words spoken inside the cabin. None of this means Ramesh will be acquitted. It does mean the case will turn on whether the prosecution can prove a demand linked to official work, and that is where the defence spends its time.
Why does sanction under Section 19 matter so much?
Without a valid sanction, the special judge cannot take cognizance of the offence against a serving public servant. The sanctioning authority is the authority competent to remove the officer from service. It must see the material collected by the agency and apply its own mind; a sanction that simply signs a draft prepared by the agency, or is given by an officer who had no power to remove the accused, can be challenged.
In practice, sanction objections are raised at the stage of charge and again at trial. Courts are reluctant to throw out a case on a technical defect in sanction unless it has caused a failure of justice, so a sanction argument is a supporting point, not usually a winning one on its own. It helps most when combined with weaknesses on demand. If the officer has retired before cognizance, the position on sanction changes and needs a careful look at the dates and the sections charged.
I was asked for a bribe: should I file a trap complaint?
If a public servant has demanded money for work that is your right, you can complain to the CBI (for central employees), the Delhi ACB (for Delhi government employees) or the state vigilance or anti-corruption unit (for UP state employees). Agencies run helplines and accept written complaints in person. Write down the date, time, place, the work pending, the amount demanded and the exact words used, and keep any messages or call records. The agency will decide whether and how to verify the demand.
If you have already paid under pressure, report it within seven days. The proviso to Section 8 protects a person who was compelled to pay and reports it within that time; after that, the protection becomes harder to claim. If you take part in a trap after informing the agency, Section 8(2) protects you, because you are paying to help the investigation, not to get the work done.
Think about the trial before you file. You will be the main witness, possibly several years later, and you will be cross-examined about your motive, your earlier dealings with the officer and every detail of the trap. A complainant who exaggerates, or who uses a trap to settle a private score, puts himself at risk of a false evidence prosecution. A truthful complaint, made promptly, is the strongest kind.
Papers to collect in a trap case
Collect copies early. Some of these come with the chargesheet; others you have to apply for.
For the accused public servant
- Arrest memo, grounds of arrest and remand orders
- FIR or RC copy and the complaint on which the trap was laid
- Pre-trap and post-trap memos (with the chargesheet)
- Transcript and copy of the verification recording
- FSL report on the hand wash
- Office file showing the status of the work on the date of the alleged demand
- Records of any private dealings with the complainant
- Sanction order and the material placed before the sanctioning authority
For the complainant
- Written note of the demand with dates and amounts
- Proof that the work was pending with that officer (application, receipt, file number)
- Messages, call logs and any recording made before approaching the agency
- Proof of identity and address
- Copy of your complaint and any receipt given by the agency
- Bank or cash withdrawal record for the trap money
Common defence points in trap cases
These are the points that most often weaken a trap prosecution. Which ones apply depends entirely on the papers.
- No pending work. If the work had already been done, or was not with the accused at all, the motive for a demand becomes doubtful.
- Demand not proved. The recording may be vague, unrelated to official work, or not in the accused's voice. The shadow witness may not have heard the conversation.
- Innocent explanation for the money. Repayment of a loan, a lawful fee or money planted without the accused's knowledge, supported by documents or circumstances.
- Witnesses not independent. Witnesses who regularly assist the agency, or who are subordinate to the investigating officer, carry less weight.
- Chain of custody. Delay in sending the hand wash samples, broken or unexplained seals, or inconsistent descriptions of the colour.
- Electronic evidence defects. No proper Section 63 BSA certificate, no original device, or obvious edits in the recording.
- Sanction defects. Wrong authority, or sanction given without looking at the material, combined with prejudice to the accused.
What happens to the job: departmental proceedings in a trap case
A trap case usually runs on two tracks at once: the criminal case before the special judge and departmental proceedings by the employer. The department can suspend the officer, issue a charge sheet under the conduct rules, and proceed with an inquiry even while the criminal case is pending. The standard of proof in the inquiry is lower, so an officer can be penalised departmentally even if the criminal trial is still years away.
The two tracks can be managed together. The officer can ask the department to defer the inquiry where the charges and the witnesses are identical to the criminal case and disclosing the defence early would prejudice the trial; whether that request succeeds depends on the facts. Our post on replying to a departmental charge sheet explains how to answer the charges without giving away the criminal defence, and our service law and CAT practice page covers challenges to suspension and penalties.
How long does a trap case take, and how does the trial run?
The investigation in a trap case is usually short, because most of the evidence is created at the trap. A chargesheet often follows within a few months, once the FSL report and sanction are in. The special judge then takes cognizance, supplies copies, hears arguments on charge and frames charges. The 2018 amendment added Section 4(4), which asks special judges to complete the trial within two years, extendable by six months at a time up to four years in total. In practice, the pace depends on the court's list and the availability of witnesses.
At the stage of charge, the accused can argue for discharge if the material, taken at face value, does not disclose a demand. Our post on discharge applications in criminal cases explains how that argument works. After charge, the prosecution examines the complainant, the shadow witness, the trap team, the FSL expert and the sanctioning authority. The accused is then examined under Section 351 BNSS and can lead defence evidence.
A conviction under Section 7 carries a minimum of three years, so probation is not available. An appeal lies to the High Court, and the High Court can suspend the sentence and grant bail during the appeal. An acquittal can be appealed by the agency.
What to do this week after a trap
For the family of an accused public servant, the first week usually looks like this.
- Get the arrest memo, grounds of arrest and the remand order from the special judge's court.
- Engage counsel to oppose further police custody and move bail as soon as the remand ends.
- Collect the office file and any documents showing the status of the work on the date of the demand.
- Write down, privately for your lawyer, the accused's account of every dealing with the complainant.
- Preserve phone records and messages; do not delete anything, even if it looks unhelpful.
- Do not contact the complainant, the shadow witness or the trap team.
- Note the date of arrest for the 48-hour deemed suspension rule and inform the department properly.
- Keep copies of every order and the next date of hearing in one folder.
Honest limits: what a trap defence can and cannot do
A trap case with a clear recorded demand, independent witnesses who heard it, a prompt FSL report and a valid sanction is a strong prosecution case, and it is better to know that early. In such a case, the defence work is about bail, about fair conduct of the trial and about testing every link, not about promising an acquittal. Plea bargaining is generally not available in corruption cases, because the PC Act is among the laws treated as affecting the socio-economic condition of the country, so the case usually goes to trial.
Equally, many trap cases are weaker than they look on the day of the arrest. The weaknesses tend to be in the demand evidence, the independence of the witnesses and the electronic record, and they only show up when someone reads the full chargesheet against the office file. A point Advocate B.K. Singh often makes to families is that the trap team prepares its papers in a few hours on the day, while the defence has months to read them; that time should be used.
If you are dealing with a trap case, either as the accused or as a complainant, the team of Advocate B.K. Singh at B.K. Singh & Associates can read the papers and explain the next steps. You can send a short note through our online enquiry page. If the case has reached the chargesheet stage, our post on what happens after a chargesheet is filed sets out the court stages that follow.
Frequently asked questions
What is a trap case in a bribery matter?
A trap case is a bribery prosecution in which the agency catches a public servant accepting money that the complainant pays with the agency's knowledge. The notes are marked and treated with phenolphthalein, and the arrest happens on the spot. The offence charged is usually Section 7 of the Prevention of Corruption Act.
Is recovery of bribe money enough for conviction?
No. The prosecution must prove that the public servant demanded the money and accepted it. Recovery of treated notes from the accused helps prove acceptance, but without proof of demand courts do not convict.
What if the complainant turns hostile in a trap case?
The case does not automatically fail. In Neeraj Dutta v State (2022), the Supreme Court held that demand and acceptance can be proved through other evidence, including circumstantial evidence, when the complainant is unavailable or hostile. The court still needs reliable evidence of the demand, such as a recording or the shadow witness.
Is the person who gives the bribe also guilty?
Giving a bribe is an offence under Section 8 of the PC Act. But a person who was compelled to pay and reports it to the police or an agency within seven days is protected, and so is a person who pays as part of a trap after informing the agency.
Do I get bail if I am caught in a CBI trap?
Bail is decided by the special judge under Section 483 BNSS, and there are no special twin conditions for PC Act offences. Once police custody ends and the money and documents are seized, bail is commonly granted with conditions. Each case depends on its facts.
Will I be suspended after a trap arrest?
If you are a government employee held in custody for more than 48 hours, most service rules treat you as suspended from the date of detention. The department can also suspend you separately. Suspension can be reviewed and challenged if it continues for a long time.
Which court hears trap cases in Delhi?
Trap cases investigated by the CBI or the Delhi Anti-Corruption Branch are tried by special judges under the PC Act, who sit at the Rouse Avenue court complex. Bail and remand applications are also heard there.
Is Section 17A approval needed for a trap?
No approval is needed for an arrest on the spot on a charge of accepting or attempting to accept an undue advantage. That exception is in the proviso to Section 17A itself. Approval questions can arise if the investigation extends to earlier official decisions.
Where do I complain if an officer demands a bribe in Delhi?
Complain to the CBI if the officer is a central government or public sector bank employee, and to the Delhi Anti-Corruption Branch if the officer works for the Delhi government. Give a written complaint with the date, amount, the work pending and the exact words used.
What is the punishment for taking a bribe under Section 7?
Section 7 of the PC Act carries imprisonment of not less than three years, which may extend to seven years, and a fine. Because there is a minimum sentence, probation is not available on conviction.
Can a trap case be quashed by the High Court?
Quashing of a trap case under Section 528 BNSS is uncommon because the allegations usually disclose an offence on their face. It may be possible where there is a clear legal bar or the papers show no demand at all. More often, the defence is raised at the stage of charge or at trial.
How long does a trap case trial take?
Section 4(4) of the PC Act asks special judges to finish the trial within two years, extendable up to four years. In practice the time depends on the court's workload and how quickly witnesses are produced. Many trials take several years.
Written and reviewed at B.K. Singh & Associates
Advocate B.K. Singh
Founder of B.K. Singh & Associates. MCA, LL.B., LL.M., with more than twenty years of practice before the Supreme Court, the Delhi High Court, district courts and tribunals across Delhi NCR. This article explains the general law as of 24 October 2026; it is not legal advice on your facts.