Using Someone Else’s Oyster Card: What Happens Next

Using Someone Else’s Oyster Card: What Happens Next

Using someone else’s Oyster card is one of the most common TfL prosecution scenarios — and one of the most misunderstood. Most people who receive a Verification Letter assume it is equivalent to a parking ticket. It is not. It is a notification that TfL is considering criminal proceedings under the Railway Byelaws 2006 or Section 5(3) of the Regulation of Railways Act 1889. The difference between those two charges — and which one TfL decides to pursue — is the difference between a minor record and a permanent dishonesty conviction.

What TfL’s Own Policy Says

TfL’s Revenue Enforcement and Prosecutions Policy (updated November 2025) sets out the internal framework TfL applies when deciding whether to prosecute. It is a public document — TfL publishes it on its website — and it is the document that its Investigations, Appeals and Prosecutions team refers to when making a charging decision about your case.

The Policy defines reportable irregularities as including “a failure or omission to validate an Oyster card, or to use another person’s pass or ticket which is non-transferable when on any of our services.” Using someone else’s Oyster card sits squarely within that definition regardless of the circumstances.

Separately, TfL’s Magistrates Briefing Notes — obtained under Freedom of Information and last updated March 2023 — confirm that TfL loses over £120m annually through fare evasion and that Revenue Protection Officers are specifically trained to check passengers’ Oyster cards and other travel mandates and to report irregularities for prosecution. The briefing notes are provided to magistrates ahead of TfL hearings to explain TfL’s enforcement position. They confirm that TfL pursues prosecution rather than civil recovery as its primary enforcement mechanism.

This is the institutional context behind the letter you have received. Understanding it matters because the response strategy is different depending on where in that process your case currently sits.

The Two Charges — and Why It Matters Which One You Face

TfL prosecutes Oyster card misuse under one of two legal routes. The charge determines the severity of the consequences, the defence strategy, and how it appears on a DBS check.

Byelaw 17(1) of the Railway Byelaws 2006 — the strict liability route. The charge is using “a travel mandate which has been issued for use by another person on terms that it is not transferable.” TfL does not need to prove intent. A genuinely accidental use — grabbing the wrong card from a bag, using a spouse’s card in a moment of confusion — can technically satisfy this offence. It is not a recordable offence on the Police National Computer and does not appear on a Basic DBS check, though it can appear on Enhanced checks at the Chief Constable’s discretion.

Section 5(3) of the Regulation of Railways Act 1889 — the dishonesty route. Used where TfL believes the use was deliberate. This is a recordable dishonesty offence. It appears on Standard and Enhanced DBS checks for up to 11 years. It must be disclosed to the FCA, GMC, SRA, NMC, and other professional regulators. For regulated professionals, it can trigger fitness-to-practise investigations. For visa holders, it creates immigration consequences under Part 9 of the Immigration Rules.

Which charge TfL pursues depends on the number of journeys detected, what was said at the inspection, and the Investigations team’s assessment of the evidence. The body-worn camera footage from the Revenue Protection Officer’s inspection is reviewed. The Oyster card’s journey history is analysed. Anything said at the inspection — “yes, I knew it wasn’t mine” versus “I must have picked up the wrong card” — materially affects the decision.

The Verification Letter — Your 10-Day Window

The first piece of official correspondence in most cases is TfL’s Verification Letter. It arrives from the Investigations, Appeals and Prosecutions team and asks you to respond within 10 days (sometimes 14 days depending on the nature of the allegation) with your account of the incident.

This is not a fine. It is not an invitation to apologise. It is TfL giving you the opportunity to put your account on record before the decision to charge is made. The response becomes part of the prosecution file if the case proceeds. A poorly drafted response — containing admissions that were not made at inspection, describing motivations that suggest deliberate intent, or failing to raise genuinely available defences — can move TfL from Byelaw 17(1) to Section 5(3) based on the content of your own letter.

The correct approach at this stage is a formally structured response that: addresses the evidential basis of the allegation; presents any factual matters that weaken the dishonesty case (such as evidence that the use was accidental, that your own valid card was also in your possession, or that the card was given to you in circumstances that raise a genuine question about intent); applies the public interest test from the Code for Crown Prosecutors; and proposes a structured financial settlement as an alternative to prosecution.

TfL’s Investigations team has the discretion to resolve the matter with a Formal Warning — an internal administrative record that does not appear on any DBS check — in appropriate cases. This is the optimal outcome for most first-time Oyster card cases.

What Happens If You Do Not Respond

TfL’s policy is explicit on this: non-response is treated as having no valid explanation and escalates to prosecution. The next document you receive will be a Single Justice Procedure Notice — a formal criminal charge processed by a single magistrate in a closed session. You will have 21 days to respond via the online portal. If you do not respond, or if you click “Guilty” without understanding the consequences, a criminal conviction is recorded on your permanent record.

Ignoring the Verification Letter closes the option of a Formal Warning entirely.

The Scenarios — Honest Assessment of What Each One Means

“I accidentally used my partner’s card — I had my own card too.” This is the strongest position. If your own valid Oyster card or contactless payment method was also in your possession, the subjective dishonesty limb of the Ivey v Genting Casinos [2017] UKSC 67 test is genuinely arguable — you had no financial motive to use a card that was not yours. A properly evidenced response at the Verification stage, with your own card’s journey history and evidence that the cards were kept together, supports the public interest argument for a Formal Warning.

“I borrowed my parent’s 60+ Oyster to get home — I had no other way.” The most common scenario. There is no legal defence of necessity or emergency in TfL prosecutions. The fact that you had no other way does not affect the technical offence. It is, however, powerful mitigation — particularly where you are of good character, have no prior dealings with TfL enforcement, and acted in a genuine moment of urgency rather than as part of a pattern of misuse. A Formal Warning is achievable in first-offence cases with good mitigation.

“I used my sibling’s student Oyster to get the discount.” Higher risk. This involves use of a concessionary card specifically to obtain a financial benefit to which you are not entitled. TfL is more likely to characterise this as Section 5(3) than Byelaw 17(1). The dishonesty argument is stronger because the discount element suggests deliberate intent. Settlement remains achievable — particularly for first-time offenders with career or visa consequences — but requires a more carefully constructed public interest argument.

“I used it multiple times before being stopped.” The most serious position. Multiple journeys detected through journey-history analysis are treated by TfL as evidence of a deliberate pattern. The Section 5(3) charge is almost certain. Settlement remains possible but requires full financial restitution of every journey plus costs, and a compelling account of why a dishonesty conviction would be disproportionate to the circumstances. This is where professional representation makes the largest difference — the argument must be forensically assembled, not informally drafted.

How TfL Detects Oyster Card Misuse

TfL’s detection capability has expanded significantly since the 2025 BBC documentary that exposed approximately 26,000 fare evaders annually using contactless and Oyster methods. The principal detection routes for Oyster card misuse are:

At-barrier inspection: A Revenue Protection Officer identifies a mismatch between the person presenting the card and the registered cardholder details — typically through a name check against the card or a visual mismatch where the card carries a photograph (Zip cards, Freedom Passes, and some photocards). This is the most immediate detection route.

Journey history analysis: Every registered Oyster card generates a journey history linked to the registered account. Analysis of unusual patterns — consistent use at times or stations inconsistent with the registered cardholder’s known travel, or cards being used simultaneously at two locations — triggers investigation. TfL does not need to catch someone at the barrier to build a prosecution case.

Victim cardholder complaint: Where the registered cardholder notices journeys they did not make and reports to TfL, the investigation proceeds against the person identified through CCTV at the relevant station.

The Brohiri Ruling — January 2026

The January 2026 ruling in Govia Thameslink Railway Ltd v Charles Brohiri confirmed that non-lawyer TfL employees have lawful authority to commence SJPN proceedings. Technical challenges to the validity of TfL prosecutions on the basis that lay prosecutors signed the paperwork are no longer viable. The defence must be substantive — not procedural. This is why a properly evidenced public interest argument, assembled at the Verification Letter stage, is now the primary defence mechanism.

Case Studies

(Names and identifying details changed for confidentiality.)

The graduate analyst. Caught using her mother’s 60+ Oyster at Canary Wharf. TfL issued a Verification Letter alleging Section 5(3). Her employer — an investment bank — had a zero-tolerance policy on dishonesty offences and a pending background check. We provided TfL with evidence of her own valid contactless card registered to the same journey pattern, character references from two colleagues, and a submission focusing on the FCA Fit and Proper consequences of a dishonesty conviction for a person with no prior record. TfL issued a Formal Warning. No prosecution. FCA authorisation maintained. Background check cleared.

The UCL student. Had been using his sister’s student Oyster on three occasions — detected through journey history analysis. Multiple journeys made Section 5(3) the near-certain charge. We assembled a full financial restitution offer, a detailed character submission including his academic record and visa status (Tier 4), and formal representations on the impact of a dishonesty conviction on his Graduate Route application. TfL agreed to an out-of-court settlement for £180 (full journey restitution plus administrative costs). No conviction. Graduate Route application subsequently submitted without issue.

The NHS nurse. Had mistakenly used her husband’s standard Oyster having left her own at home. Genuinely accidental — her own card was in her desk at work. We submitted evidence of her own registered card’s journey history (unused on the relevant dates), confirmation that both cards were habitually kept together, and a specific submission on NMC good character obligations. TfL accepted a Formal Warning. No prosecution. DBS certificate clear.

Frequently Asked Questions

Will using someone else’s Oyster card give me a criminal record?

Only if you are convicted in court. A Byelaw 17(1) conviction is not recordable on the Police National Computer — it does not appear on a Basic or Standard DBS check, though it can appear on Enhanced checks at the Chief Constable’s discretion. A Section 5(3) conviction is recordable and appears on all DBS check levels for up to 11 years. An out-of-court settlement or Formal Warning produces no conviction and no DBS entry.

Is there a defence if I genuinely did not know it was wrong?

Lack of knowledge is not a formal legal defence to either Byelaw 17(1) (strict liability) or Section 5(3) (dishonesty). However, it is relevant to the public interest test. Where the defendant genuinely did not appreciate the seriousness of the act — particularly a young person or first-time offender with no prior dealings with TfL enforcement — the absence of knowledge of the consequences is a factor in the proportionality argument for a non-prosecution outcome.

My friend gave me their Oyster card to use. Does their permission help?

No. TfL’s enforcement obligation is to the registered cardholder’s terms, not to private arrangements between individuals. The cardholder’s permission does not create a lawful basis for use by someone who is not the registered holder. It is, however, relevant mitigation — use with the cardholder’s consent involves less culpability than use without it, and a first-offence with consent is a stronger public interest argument than use without the cardholder’s knowledge.

What is a TfL Formal Warning and is it on my record?

A TfL Formal Warning is an internal administrative outcome stored on TfL’s enforcement database, typically for 12 months. It is not a criminal conviction. It does not appear on any level of DBS check. It does not need to be disclosed to employers or professional regulatory bodies. It is the best realistic outcome for a first-offence Oyster card case with good mitigation — better than an out-of-court settlement (which involves court payment) and far better than a conviction.

I responded to the Verification Letter myself and admitted what happened. Have I damaged my case?

Possibly, but not necessarily fatally. An admission in the Verification Letter response is one piece of evidence. The public interest argument — your character, the consequences of a conviction, the isolated nature of the incident — can still produce a settlement even where an admission has been made. Contact us before TfL makes its charging decision, which typically takes 2-4 weeks after the Verification Letter response deadline.

How much does TfL typically seek in an out-of-court settlement?

The standard TfL out-of-court settlement for Oyster card misuse comprises the full value of the journeys made on the card plus TfL’s administrative costs — typically £200-£600 depending on the number of journeys and the card type. This is in addition to legal fees. The financial exposure in a settlement is materially lower than the financial and career exposure of a conviction.

Further Reading

• Fare Evasion Solicitors — Main Guide
• TfL Fare Evasion Defence — Full Guide
• Using Someone Else’s Freedom Pass
• Using a Partner’s 60+ Oyster Card
• Using Someone Else’s Contactless Card on TfL
• Fare Evasion and DBS Check Impact
• Fare Evasion and UK Visa / Immigration Impact
• SJPN Fare Evasion Guide — 21 Days to Act

External Resources

• TfL Revenue Enforcement and Prosecutions Policy (November 2025)
• Railway Byelaws 2006
• Section 5 Regulation of Railways Act 1889
• Code for Crown Prosecutors

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Written and approved by Shella Makwana, Criminal Defence Solicitor | 25+ years\’ experience | SRA Regulated (No: 651072) | Makwana Solicitors Limited, Devonshire House, 582 Honeypot Lane, Stanmore, HA7 1JS | Page last updated June 2026

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