Foreign Investor Faces Simultaneous Customs Penalties, Goods Seizure and Criminal Investigation in Turkey: Legal Defense Guide (2026 Updated Guide)

A foreign investor faces customs penalties, seizure of imported goods and a criminal investigation in Turkey. Learn how to coordinate customs objections, release requests, evidence preservation and criminal defense.

A customs dispute in Turkey can become considerably more serious when three proceedings develop at the same time: an administrative customs penalty, seizure or detention of goods, and a criminal investigation concerning suspected smuggling or another customs-related offence. Foreign investors frequently make the mistake of treating these as a single case. In practice, each measure may have a different legal basis, competent authority, evidentiary standard, deadline and remedy. A statement made to solve the customs assessment may also affect the criminal file. For that reason, the defense should be coordinated from the first day.

Why Can One Customs Incident Produce Several Proceedings?

A customs declaration can raise several separate questions. Customs authorities may believe additional duties are payable, an administrative penalty may be imposed, goods may be detained or seized, and facts considered potentially criminal may be referred to the public prosecutor.

The existence of one proceeding does not automatically determine the outcome of the others.

Separate the Proceedings Immediately

The company should create separate files for:

Customs debt and additional assessment: Whether additional customs duties or other import charges are payable.

Administrative penalty: Whether the circumstances satisfy the statutory requirements for a customs penalty.

Goods seizure or detention: Whether continued control over the goods is legally justified.

Criminal investigation: Whether the alleged conduct satisfies the elements of a criminal offence.

This separation is one of the most important parts of an effective defense.

Obtain Every Formal Decision

The foreign investor should immediately collect the customs declaration, inspection records, additional assessment, penalty decision, seizure or detention records, laboratory or expert reports, correspondence with the customs broker and any prosecutor or law-enforcement documents.

Notification dates should be recorded separately.

Do Not Miss the Customs Objection Deadline

Turkish customs disputes can involve short procedural periods. Where the general objection procedure under the Customs Law applies, the company should determine the relevant deadline immediately after notification.

Criminal proceedings should not cause the company to overlook its separate customs remedies.

A Criminal Investigation Does Not Automatically Make the Customs Assessment Correct

The fact that a prosecutor is investigating the transaction does not by itself establish that Customs correctly determined classification, value, origin or another customs issue.

The underlying technical customs question should still be examined independently.

A Customs Penalty Does Not Automatically Establish a Crime

Administrative non-compliance and criminal liability are not interchangeable. Incorrect classification, documentation mistakes or additional duty exposure should not automatically be characterized as intentional smuggling.

Criminal responsibility requires analysis under the relevant criminal and anti-smuggling provisions.

Determine What Triggered the Criminal Referral

Possible triggers include allegations concerning false documents, concealed goods, incorrect origin, deliberate undervaluation, undeclared goods, prohibited or restricted products or conduct allegedly intended to avoid customs controls.

The defense should identify the precise allegation rather than respond broadly to an undefined accusation of “customs fraud.”

Who Is Actually Under Investigation?

The company, manager, employee, customs broker, driver, importer or another person may have different roles.

Individual criminal liability should be examined according to each person’s conduct and knowledge. A managerial title alone should not replace an analysis of actual involvement.

Foreign Managers Should Prepare Before Giving a Statement

A foreign company manager summoned by police, customs enforcement or a prosecutor should determine in what capacity they are being questioned and obtain legal assistance before making substantive statements.

They should not speculate about transactions handled by departments or employees whose actions they did not personally supervise.

Interpreter Rights Are Important

A foreign person who cannot adequately understand Turkish should request appropriate interpretation during criminal proceedings. Understanding the questions and accurately recording the answers is essential in a customs investigation involving complex technical terminology.

Do Not Guess During Questioning

If the manager does not know why a tariff code was selected, who prepared a certificate or how customs value was calculated, they should not invent an explanation.

Those questions can later be answered through records and responsible personnel.

Preserve Emails and Internal Communications

Once an investigation begins, preserve relevant emails, contracts, invoices, compliance files, customs broker communications, ERP records, shipping documents and internal approvals.

Deleting or altering records can create substantially greater problems.

Suspend Routine Document Destruction

Companies with automatic email deletion or document-retention policies should consider appropriate preservation measures for material relevant to the investigation.

Investigate the Customs Classification

If the dispute concerns tariff classification, collect technical specifications, catalogues, drawings, product composition and manufacturer information.

A genuine classification dispute should be distinguished from deliberate misdescription of goods.

Review Customs Value

If undervaluation is alleged, examine invoices, purchase contracts, payment records, royalties, assists, commissions, related-party relationships and subsequent payments.

The commercial payment trail should be reconciled with the declared customs value.

Review Country of Origin

Origin allegations can become particularly serious where duties, anti-dumping measures or other restrictions depend on origin.

Prepare manufacturing records, bills of materials, certificates, supplier evidence and transport documents supporting the genuine production history.

Incorrect Origin and False Origin Documents Are Different Issues

A technically incorrect origin determination does not automatically establish deliberate falsification.

The criminal file should distinguish legal disagreement over origin rules from intentional creation or use of false documentation.

Examine the Role of the Customs Broker

Determine what information the importer provided to the customs broker and what decisions the broker made.

Obtain emails, classification instructions, invoices, technical documents and previous declarations.

Broker Involvement Does Not Automatically Eliminate Importer Exposure

Using a customs broker does not mean that the importer can ignore the accuracy of its customs information. However, the broker’s conduct and information available to each party can be highly relevant to responsibility.

Goods Seizure Requires a Separate Strategy

Where commercially valuable goods are seized or detained, the company should identify the legal basis and authority responsible for the measure.

A request concerning release of the goods may require a different procedural strategy from the customs penalty objection.

Document the Condition of the Goods

Take photographs and preserve inventory, serial numbers, quantity, packaging and condition records where legally possible.

This is especially important for perishable, high-value or technically sensitive goods.

Storage Costs Can Become a Major Loss

Warehouse, terminal, container, refrigeration and demurrage charges can continue while the legal dispute develops.

Maintain a daily cost record and pursue commercially reasonable mitigation measures.

Perishable Goods Require Urgent Action

Where detained goods can deteriorate, the legal strategy should account for remaining shelf life and storage requirements.

A successful challenge months later may provide little commercial value if the goods have already become unusable.

Can Seized Goods Be Released?

Potentially, depending on the legal basis for seizure, evidentiary requirements and procedural stage. The company should evaluate whether continued possession of the physical goods is necessary and whether an available legal mechanism permits release.

Preserve Samples Before Irreversible Measures

If testing, destruction or disposal is possible, evidence preservation becomes particularly important.

Relevant samples, photographs, expert reports and inspection records should be secured through legally available procedures.

Administrative and Criminal Evidence Must Be Coordinated

The company’s explanation of the transaction should remain factually consistent across customs and criminal proceedings.

This does not mean that identical submissions should mechanically be filed everywhere. Different legal questions require different arguments.

Avoid Premature Admissions

A company may wish to resolve an administrative customs issue quickly by accepting an error. Before doing so, consider whether the wording of that acceptance could be interpreted differently in the criminal investigation.

Administrative strategy should therefore be coordinated with criminal defense.

Voluntary Correction Requires Careful Analysis

If the company discovers additional errors in other declarations, it should assess available corrective mechanisms promptly.

However, corrections should be made through the appropriate legal procedure and coordinated with the existing investigation.

Review Historical Imports

Authorities may examine earlier declarations involving the same product, supplier or customs practice.

Create a declaration-by-declaration matrix showing date, product, tariff code, origin, value, supplier, broker and customs treatment.

Do Not Assume Every Historical Declaration Has the Same Problem

Product specifications, suppliers, manufacturing countries and contractual arrangements can change over time.

Each declaration should be reviewed according to its own facts.

Review Goods Already in Transit

If identical products are heading toward Turkey, investigate them before arrival.

Continuing the same declaration practice while authorities are challenging it can substantially increase exposure.

Independent Technical Experts May Be Necessary

Classification, origin, valuation and product-compliance disputes can involve specialized technical questions.

Engineers, accountants, customs specialists or other experts may help distinguish a technical mistake from alleged deliberate misconduct.

Financial Evidence Can Be Crucial

Where authorities allege deliberate undervaluation or concealed payments, bank records and accounting information may show the actual commercial structure.

Payment flows should be mapped carefully.

Related-Party Transactions Require Additional Review

Imports from a foreign parent, subsidiary or sister company can raise valuation and transfer-pricing questions.

Prepare intercompany agreements, transfer-pricing documentation and evidence explaining the commercial relationship.

Search and Seizure of Digital Devices

If company computers, phones or records are seized during a criminal investigation, preserve copies of relevant legal documents concerning the measure and identify the devices and data taken.

Questions concerning access, examination and return should be handled within the applicable criminal procedure.

Bank Accounts May Also Be Affected

Serious customs or smuggling investigations can create wider financial consequences depending on the allegations and measures ordered.

Companies should maintain accurate records showing legitimate business transactions and sources of funds.

Company and Manager Liability Must Be Distinguished

A foreign shareholder, director or manager should not automatically be treated as personally responsible simply because of their position.

Actual authority, involvement, knowledge and conduct should be examined individually.

Headquarters Should Control Internal Communications

When a multinational group learns of a Turkish investigation, internal communications can quickly become inconsistent.

Establish a small response team and a reliable factual chronology before making external statements.

Conduct an Internal Investigation

Determine who ordered the goods, who selected the supplier, who classified them, who prepared the documents, what the broker received and who approved the declaration.

The purpose is to understand the facts accurately before authorities ask the same questions.

Do Not Manipulate Internal Records

Internal investigation notes should not be used to rewrite historical documents. Original records must remain intact.

Supplier Responsibility Should Be Investigated

A foreign supplier may have provided an incorrect invoice, origin certificate, product description or technical document.

Preserve contractual claims against the supplier while defending the public-law proceedings in Turkey.

Send Formal Notice Where Appropriate

If supplier information appears inaccurate, timely notice may be important under the supply contract.

Request supporting production, pricing and origin records immediately.

Review Insurance Coverage

Depending on the circumstances and policy wording, relevant insurance coverage should be reviewed. Notification periods may apply.

Customs Settlement and Criminal Proceedings Are Separate Questions

Any possibility of resolving a customs assessment administratively should not be assumed to terminate a criminal investigation automatically.

Each proceeding requires its own legal analysis.

What If the Administrative Customs Decision Is Cancelled?

Cancellation of the underlying customs assessment can be highly relevant, but its effect on a criminal investigation depends on the alleged offence and reasons for cancellation.

The criminal file should be updated with favorable administrative or judicial developments.

What If the Criminal Investigation Ends Without Prosecution?

A decision not to prosecute does not necessarily eliminate every customs debt or administrative dispute.

The company should continue pursuing the appropriate remedies in each proceeding.

Compensation for Wrongful Measures

If goods were unlawfully detained, seized or subjected to an unlawful administrative action, potential compensation should be evaluated separately.

Recovery is not automatic. The company should preserve evidence of direct losses, storage expenses and causation.

Lost Profits Are More Difficult to Prove

Cancelled customer orders or production losses should be documented with contracts, correspondence and financial evidence.

General estimates of lost business are significantly weaker than transaction-specific evidence.

Immediate Defense Strategy

A foreign investor facing simultaneous customs penalties, seizure and criminal investigation should immediately:

1. Obtain every customs, seizure and criminal-procedure document.
2. Record all notification and procedural deadlines.
3. Separate customs debt, administrative penalty, seizure and criminal files.
4. Preserve emails, accounting records and customs documents.
5. Prepare managers before any criminal statement.
6. Review classification, value, origin and product compliance independently.
7. Examine the customs broker’s role.
8. Document detained goods and accumulating storage costs.
9. Review historical declarations and incoming shipments.
10. Coordinate all submissions so that an administrative defense does not unintentionally damage the criminal case.

Frequently Asked Questions

Does a customs penalty mean that a smuggling offence has been committed?

No. Administrative customs liability and criminal liability involve separate legal analyses.

Can Customs send a case to the prosecutor?

Potentially, where authorities believe the facts may involve criminal conduct under the applicable legislation.

Can the foreign company manager be questioned personally?

Yes, depending on the investigation. Their individual role, authority, knowledge and conduct should be examined carefully.

Should the manager answer technical questions they do not know?

They should not speculate. Technical matters can often be established through company records and responsible personnel.

Can goods remain seized while the customs objection continues?

Potentially, depending on the legal basis of the seizure or detention. Release should be evaluated separately.

Can the company challenge both the customs duty and penalty?

Potentially. The legal basis and procedural remedy for each notified decision should be examined.

Does using a customs broker protect the importer completely?

No. However, the broker’s role, instructions and information can be important when responsibility is disputed.

Can an administrative error become a criminal case?

Potentially, but a customs error should not automatically be equated with intentional criminal conduct. The specific statutory elements and evidence must be examined.

Should historical declarations be reviewed?

Yes. Once authorities question a recurring customs practice, earlier imports involving the same issue may receive additional scrutiny.

What is the most important defense principle?

Do not treat the customs assessment, administrative penalty, goods seizure and criminal investigation as one proceeding. Protect the deadlines and defenses in each file while ensuring that factual positions remain coordinated across all proceedings.

Client-Focused Legal Support for Complex Customs and Criminal Investigations in Turkey

Cases involving simultaneous customs assessments, administrative penalties, seizure of imported goods, smuggling allegations, prosecutor investigations and foreign company managers require coordinated customs and criminal defense. Fırat Fesih Kaya Law Office assists foreign investors, multinational companies, exporters and Turkish importers facing complex customs enforcement proceedings in Turkey. Lawyer Fırat Fesih Kaya provides legal assistance in customs objections, seizure and release proceedings, criminal investigations, evidence strategy, historical customs reviews and disputes involving foreign suppliers and customs brokers.

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