

A foreign crypto trader in Turkey receives cryptocurrency or money later alleged to be stolen or fraud proceeds. Learn when bank accounts, crypto assets and other property may be seized and how the trader can challenge the measure.
A foreign national trading cryptocurrency in Turkey can face a serious criminal investigation when money or crypto assets entering their account or wallet are later linked to fraud, theft, unauthorized banking transactions or another alleged offence. The trader may have received the funds through an ordinary P2P transaction, cryptocurrency sale, exchange, OTC transaction or payment from another trader without knowing anything about the underlying crime. Nevertheless, once investigators trace suspected criminal proceeds to the foreign trader, bank accounts, cryptocurrency, cash or other assets may potentially become subject to investigation and protective measures. Receiving suspicious funds does not by itself answer the separate question of whether the foreign trader knowingly participated in an offence. The defense should therefore separate the source of the funds, the trader’s knowledge and intent, the commercial reason for the transaction, and the legal basis for any seizure or freezing measure.
Cryptocurrency transactions can involve several unrelated parties. A fraud victim may transfer money to one person, that money may subsequently be used to purchase cryptocurrency from another trader, and the final recipient may have no relationship with the original fraud.
When investigators follow the money, however, the crypto trader’s bank account may appear in the transaction chain.
This can result in questioning, account restrictions or seizure measures while investigators determine what happened.
A bank transfer or blockchain transaction establishes movement of value. It does not automatically establish that the recipient knew the funds were connected with an offence.
The investigation should therefore examine the surrounding circumstances rather than relying solely on the fact that money entered the trader’s account.
In peer-to-peer trading, the person sending money may not always be the same person communicating with the seller.
This can create problems where a fraudster instructs a victim or third party to send money directly to the crypto trader and then receives cryptocurrency in return.
The trader may consequently appear to have received money directly from the victim despite never communicating with that person.
The foreign trader should immediately preserve evidence showing how the transaction occurred.
Relevant evidence may include exchange records, order numbers, wallet addresses, blockchain transaction hashes, timestamps, bank transfers, transaction amounts, platform messages and correspondence with the counterparty.
Deleting Telegram, WhatsApp, exchange or other communications after learning of an investigation can create additional evidentiary problems.
Preserve the original records and obtain backups where possible.
A trader who conducts hundreds of transactions should determine precisely which payment triggered the investigation.
Create a timeline showing the incoming bank payment, cryptocurrency transfer, wallet address, exchange order and communications associated with that transaction.
Depending on the offence under investigation, evidence and applicable criminal-procedure framework, property suspected of constituting criminal proceeds or otherwise meeting the statutory requirements for protective measures may potentially be subject to seizure or restrictions.
The existence and scope of the measure should be examined from the actual judicial or prosecutorial documentation rather than assumed from the fact that an account cannot currently be used.
A crypto-asset platform may become relevant where investigators trace transactions through an exchange account. Records concerning deposits, withdrawals, wallet transfers and account ownership may also become important evidence.
The trader should determine whether the restriction results from a criminal-procedure measure, another competent authority’s action or the platform’s own compliance process.
Potentially. Investigations involving suspected fraud or criminal proceeds can affect bank accounts used in the disputed transaction chain.
The trader should identify which accounts are restricted, the amount affected and the legal basis for the measure.
The scope of any protective measure should be examined carefully.
If a trader challenges an excessively broad measure, evidence demonstrating the legitimate source and ownership of unrelated assets can become particularly important.
Foreign crypto traders should prepare evidence explaining where their trading capital originated.
This can include bank statements, exchange records, salary or business income, previous crypto purchases, wallet history and documented transfers between the trader’s own accounts.
Public blockchain records may establish wallet movements, timing and amounts.
However, blockchain evidence should be interpreted carefully. A wallet address alone does not necessarily establish who controlled it at a particular time without additional evidence.
Where a regulated platform was used, obtain available account and transaction history.
Records may help establish when cryptocurrency was purchased, transferred or received and whether the disputed transaction formed part of ordinary trading activity.
A trader who regularly conducted similar transactions before the disputed payment may be able to demonstrate that the transaction occurred as part of an established trading pattern.
Historical activity does not automatically eliminate liability, but it can provide important context.
The defense should explain why the payment was received.
For example, if TRY 200,000 entered the trader’s account and a corresponding amount of cryptocurrency was transferred shortly afterward, the records should connect the two sides of the transaction clearly.
This can become one of the most important questions.
Identify the destination wallet and preserve communications showing who supplied that address.
If the cryptocurrency went to a person different from the bank-account holder who sent the money, the reason for that discrepancy should be investigated.
A counterparty may say, “My friend will send the payment.”
Such arrangements can become extremely problematic when the third party later states that the payment resulted from fraud.
Foreign traders should therefore be prepared to explain any mismatch between the person purchasing cryptocurrency and the person making the bank transfer.
Investigators may examine whether the trader received an unusual profit or commission.
Document the acquisition cost, sale price and ordinary trading spread to demonstrate the economic structure of the transaction.
If the trader received a return significantly above ordinary market conditions, investigators may ask why.
The trader should provide truthful commercial evidence rather than creating a retrospective explanation.
Criminal responsibility depends on the particular offence and facts. The investigation may examine whether the trader knew that the funds originated from criminal activity or knowingly assisted another person’s scheme.
The prosecution’s evidence concerning knowledge should therefore be analyzed separately from the transaction itself.
One unexpected payment may present different factual circumstances from repeated transactions involving different fraud victims but the same intermediary, wallet or communication pattern.
A complete review of transaction history is therefore necessary before giving a statement.
A foreign national summoned by police or prosecutors should understand the allegation before attempting to explain complex cryptocurrency transactions.
Guessing about wallet ownership, dates or transaction amounts can create contradictions.
A foreign suspect who cannot adequately understand Turkish criminal proceedings should clearly request interpretation where applicable.
Technical cryptocurrency terminology makes accurate communication especially important.
Before signing a police or prosecutor statement, check that the record accurately reflects what was said.
Errors concerning amounts, wallet addresses, counterparties or knowledge of the disputed funds can become significant later.
Where possible, reconstruct the transaction from objective records.
A chronological file is generally more useful than trying to remember complex transactions from memory during questioning.
Phones may contain exchange applications, wallet applications, messages and transaction records relevant to the investigation.
The legality and scope of search, examination and seizure measures should be reviewed according to the specific criminal-procedure decisions in the case.
If a device is seized, identify other lawful sources from which relevant transaction records can be obtained, such as bank statements or exchange account histories.
Do not attempt to destroy or remotely alter evidence.
Investigators may still reconstruct the transaction chain through exchange information, blockchain records and communications.
The fact that cryptocurrency no longer remains in the original wallet does not necessarily end the investigation.
Potentially. The appropriate procedure depends on the type of protective measure, authority issuing it and stage of the investigation.
The application should identify the assets concerned and explain why continued restriction is legally unnecessary or disproportionate, supported by evidence where possible.
If seized assets belong to the trader and have no connection with the disputed transaction, provide records showing their source.
General statements such as “all this money is mine” are considerably weaker than documented financial evidence.
Where only a specific amount is allegedly connected with the disputed transaction, the scope of the restriction should be examined carefully.
Depending on the facts and legal basis, arguments concerning assets beyond the disputed amount may need to be raised separately.
Where funds can be traced to an alleged victim, questions concerning restitution or return may arise independently from the trader’s criminal liability.
Ownership of the money, the crypto transaction and the trader’s good-faith position should therefore be analyzed carefully.
A trader should not assume that simply reimbursing someone automatically closes the case.
Criminal proceedings, restitution and civil liability are separate legal questions.
If someone claiming to be a victim contacts the trader demanding immediate payment, verify the identity, underlying complaint and transaction first.
Informal settlement attempts can create additional disputes if several people later claim the same funds.
Crypto traders can themselves become victims of triangular fraud.
For example, a fraudster may deceive one person into transferring money and separately deceive the trader into believing that the transfer represents legitimate payment for cryptocurrency.
This structure should be reconstructed with communications from both sides.
The person communicating with the trader may be more important than the name appearing on the bank transfer.
Preserve usernames, telephone numbers, exchange profiles, wallet addresses and other identifiers.
Where available through lawful investigative procedures, platform records can help identify who controlled accounts involved in the transaction.
The defense may need to highlight digital evidence capable of identifying the actual perpetrator.
Depending on the legal basis and allegations, investigations concerning alleged criminal proceeds can potentially extend beyond the original bank account or wallet.
Any measure affecting vehicles, cash or other property should be reviewed individually.
Asset seizure does not automatically mean that a foreign national is prohibited from leaving Turkey.
If a travel restriction exists, its legal basis and the relevant judicial decision should be examined separately.
A criminal investigation involving a foreign national can sometimes create separate immigration issues depending on the allegations and subsequent administrative decisions.
Criminal defense and immigration strategy should therefore be coordinated where necessary.
The trader should preserve bank statements, exchange account history, wallet addresses, blockchain transaction hashes, screenshots, platform order numbers, correspondence with counterparties, telephone numbers, user profiles, invoices or trading records and evidence showing the legitimate source of trading capital.
Digital transactions contain timestamps.
A timeline showing when communication began, when the bank transfer arrived, when the trader verified payment and when cryptocurrency was transferred can be particularly useful.
If no written agreement exists, do not create one retrospectively and present it as historical evidence.
Use genuine platform, bank and communication records.
Potentially. The correct remedy depends on the precise measure and authority involved.
The defense should obtain the relevant decision, determine its legal basis and challenge continued restriction where the statutory requirements are disputed or the scope is excessive.
There is no useful universal answer without identifying the exact protective measure and procedural basis.
The status of the investigation and continued necessity of the measure should be monitored rather than allowing restrictions to remain unexamined indefinitely.
If the investigation ends favorably, any continuing protective measures affecting property should be reviewed promptly and appropriate applications for release or return should be made.
The transaction evidence should be preserved for trial.
Bank records, blockchain evidence, exchange records and communications can be used to challenge allegations concerning knowledge, participation and ownership of criminal proceeds.
A foreign crypto trader who receives money later alleged to be stolen should immediately identify the disputed transaction, preserve all bank and blockchain records, determine who sent the payment and who received the cryptocurrency, preserve communications with the counterparty, document the source of trading capital, obtain the legal basis for any bank or crypto-asset restriction, avoid deleting digital evidence, prepare carefully before giving a statement and evaluate available objections against seizure or freezing measures.
Potentially, depending on the allegations, evidence and applicable protective-measure requirements. The legal basis and scope of the measure should be reviewed.
No automatic conclusion follows solely from receipt of funds. The particular offence, knowledge, intent and circumstances of the transaction must be examined.
Preserve evidence connecting the incoming payment with the cryptocurrency sale, including the order, communications and destination wallet.
This should be investigated carefully. Third-party payments can be associated with triangular fraud and may require detailed evidence explaining what the trader knew.
Potentially, depending on the investigation and legal basis for the restriction.
Potentially. Evidence demonstrating legitimate ownership and the source of funds can be important when challenging the scope or continuation of a restriction.
No. Relevant evidence should be preserved. Destruction or alteration of records can create additional problems.
Yes. They may help establish transaction timing, amounts and wallet movements, although wallet ownership may require additional evidence.
Complex transactions should be reconstructed carefully from objective records. A foreign suspect should understand the allegations and applicable procedural rights before providing a detailed explanation.
Reconstruct the complete money-and-crypto chain. The defense should show who sent the fiat payment, why it was received, what cryptocurrency was provided in exchange, where the cryptocurrency went, what the trader knew at the time and which assets are genuinely connected—or unrelated—to the alleged offence.
Cryptocurrency investigations involving foreign nationals can include fraud allegations, stolen funds, P2P transactions, bank-account freezes, crypto-asset restrictions, phone examinations, blockchain evidence, seizure of property and requests for return of assets. Fırat Fesih Kaya Law Office assists foreign nationals, foreign investors and international businesspeople involved in cryptocurrency-related criminal investigations in Turkey. Lawyer Fırat Fesih Kaya provides legal assistance in police and prosecutor proceedings, analysis of bank and cryptocurrency transactions, challenges to seizure and freezing measures, preparation of digital evidence and applications concerning the return of property.
Phone: +90 312 434 22 22
Mobile: +90 532 769 22 22
Email: info@firatfesihkaya.av.tr
Address: Mevlana Boulevard No:221, Yıldırım Tower, Office No:148, 06520 Balgat, Çankaya, Ankara, Turkey