Company Director Uses a Foreign Investor’s Signature Without Permission in Turkey: Criminal Remedies (2026 Updated Guide)

A company director uses a foreign investor’s signature without authorization in Turkey. Learn about criminal complaints, forged documents, evidence preservation, company records, financial transactions and urgent protective measures.

A foreign investor who discovers that a Turkish company director, manager, shareholder, employee or another person has used their signature without permission should treat the situation as potentially serious. The signature may have been placed on a company resolution, contract, share-transfer document, payment instruction, loan agreement, commercial document, power of attorney or another document capable of producing legal and financial consequences. Depending on how the signature was created, the document involved, how it was used and whether financial benefit or loss resulted, the conduct may raise issues involving document-related offences, fraud, breach of trust or other criminal allegations. At the same time, criminal proceedings alone may not protect the investor’s shares, company assets or bank accounts. Immediate evidence preservation and appropriate corporate, civil or commercial measures may therefore be necessary.

First Determine Which Document Contains the Signature

The investor should obtain a complete copy of the disputed document. It is difficult to develop an effective criminal strategy based only on information that “someone used my signature.”

Identify the document, date, parties, alleged signatory and transaction it was intended to authorize.

Was the Signature Actually Forged?

There can be several different factual scenarios. Someone may physically imitate the investor’s handwritten signature, copy a genuine signature from another document, insert a scanned signature into an electronic file, sign the investor’s name or use a previously signed blank document for an unauthorized purpose.

These scenarios should be distinguished carefully.

A Genuine Signature Can Still Be Misused

The dispute is not always about whether the handwriting itself is genuine. An investor may admit signing a blank or incomplete document but argue that it was later completed or used beyond the authority originally given.

The surrounding circumstances therefore matter as much as the visual appearance of the signature.

Preserve the Original Document

If possible, determine who possesses the original. Handwriting and document examination may become more difficult where only a low-resolution photograph or scanned copy exists.

Do not write on, staple, alter or otherwise interfere with a potentially important original document.

Preserve Digital Copies Carefully

If the disputed document was received by email, messaging application or another electronic channel, preserve the original digital communication together with its context.

Screenshots can be useful, but original electronic records may contain additional information.

Obtain Genuine Signature Samples

Documents containing undisputed signatures from approximately relevant periods may assist forensic comparison.

Possible examples include official corporate records, bank documents, contracts, notarized instruments and other genuine documents.

Can a Handwriting Expert Determine Whether the Signature Is Forged?

Expert examination can become central where the authenticity of a handwritten signature is disputed.

The quality of the disputed document and availability of genuine comparison samples can materially affect the examination.

Do Not Rely Only on a Private Expert Report

A privately commissioned examination may help the investor understand the dispute and prepare a complaint, but criminal authorities or courts may also obtain official expert analysis during the proceedings.

Preserving the original evidence remains essential.

Identify Who Had Access to the Signature

Determine which directors, employees, accountants, consultants or other persons possessed documents containing the investor’s genuine signature.

Access does not prove responsibility, but it can help reconstruct how the disputed document was created.

Examine the Director’s Authority

Corporate authority and signature forgery are different questions.

A director may have broad authority to represent the company but still lack authority to sign in the investor’s personal name. Conversely, some transactions may have been validly performed by the director on behalf of the company without requiring the investor’s personal signature.

The precise capacity in which the signature appears should therefore be established.

Review the Company’s Signature Circular and Corporate Records

Obtain current and historical information concerning directors, representation powers, signature authority and restrictions.

This can clarify whether the disputed transaction genuinely required the investor’s signature.

Review General Assembly and Board Records

If the disputed signature appears on corporate resolutions or minutes, obtain the complete company records surrounding the alleged meeting.

Check the meeting date, attendance, agenda, resolutions and other signatures.

Was the Investor Actually in Turkey?

Travel records can become highly relevant. If the document supposedly bears a wet-ink signature executed in Turkey on a date when the investor was demonstrably abroad, this can provide important factual evidence.

Preserve passport records, tickets and other reliable travel information.

Location Evidence May Also Be Relevant

Where appropriate and lawfully obtainable, hotel, business, travel or other contemporaneous records may help demonstrate the investor’s location.

The strongest defense usually combines several independent pieces of evidence.

Check Emails and Messages

Search communications surrounding the disputed transaction. Messages may show that the director asked for authorization and was refused, acknowledged that the investor had not signed, requested a signature after the supposed execution date or discussed creating documents without the investor’s participation.

Preserve the complete conversation rather than isolated screenshots.

Bank Transactions Must Be Reviewed Immediately

If the forged signature was used for payment instructions, loans, guarantees or account changes, obtain the relevant banking records.

Identify the beneficiary, transaction date, amount and authorization method.

Notify the Bank Where Appropriate

Where there is an ongoing risk of unauthorized transactions, the bank may need to be informed promptly of the disputed authority or signature.

The exact protective action should be tailored to the account structure and circumstances.

Review Company Bank Accounts

A forged document may be part of a broader asset-diversion scheme. Review unusual transfers, cash withdrawals, payments to related parties and transactions without an identifiable commercial basis.

Check Whether Company Assets Were Transferred

Investigate whether the disputed signature was used to sell or encumber real estate, vehicles, shares, machinery or other assets.

Urgent protective measures may become necessary if assets remain at risk of further transfer.

Share Transfers Require Immediate Attention

If the investor’s signature was allegedly used on a share-transfer transaction, obtain all documents concerning the transfer and subsequent corporate registration or record changes.

Criminal proceedings may need to be coordinated with commercial-law remedies concerning ownership of the shares.

Check the Trade Registry Records

If the document was used to change directors, representation authority, capital structure or another registered corporate matter, determine exactly what was filed and registered.

Obtain copies of the underlying documents where available.

Notarized Documents Require Separate Investigation

If the disputed document appears to have been notarized, determine whether the investor actually appeared before the relevant authority and what identification or procedural records exist.

A purported notarization can materially affect the investigation.

Power of Attorney Abuse Is Different From Signature Forgery

Sometimes the director did not forge the investor’s signature but acted using an existing power of attorney.

In that situation, the legal issue may concern whether the representative exceeded or abused granted authority rather than whether a signature was fabricated.

The power of attorney should therefore be reviewed word by word.

Revoke Dangerous Authority Where Necessary

If a representative still holds authority capable of causing further loss, the investor should assess whether revocation or other protective action is necessary.

Ending future authority does not by itself resolve transactions already completed.

Can the Foreign Investor File a Criminal Complaint?

Potentially, yes. Where the facts indicate unauthorized creation or use of documents or another criminal act, the investor may submit the matter to the competent criminal authorities.

The complaint should explain the factual chronology and provide available supporting evidence rather than simply state that the director is dishonest.

Identify Every Suspected Participant Carefully

The person who physically created the signature may not be the only relevant actor.

Another person may have instructed its creation, knowingly used the document, submitted it to a bank or public authority or obtained the resulting benefit.

The investigation should follow the evidence rather than assume that only one individual was involved.

Forgery and Fraud May Overlap

Where an allegedly false document was used to obtain money, shares, credit, property or another benefit, the facts may raise more than one potential criminal issue.

The exact legal characterization depends on the document and manner in which it was used.

Breach of Trust May Also Need Examination

A company director who controls company property or funds may face separate allegations if entrusted assets were diverted for unauthorized purposes.

The financial transaction and the disputed signature should therefore be examined together.

Do Not Accuse People Publicly Before Preserving Evidence

Public allegations can complicate the dispute and may alert suspected participants before evidence is secured.

Priority should usually be given to obtaining records and protecting assets.

Search and Seizure of Relevant Evidence May Become Important

In an appropriate criminal investigation, authorities may obtain relevant documents, computers, phones or other evidence through legally authorized investigative measures.

A complainant should identify where important evidence may exist without attempting unauthorized access personally.

Company Email Accounts May Contain Evidence

Corporate email can show preparation, circulation and approval of disputed documents.

Preserve access logs and relevant communications where lawfully available.

Accounting Records Can Reveal the Purpose of the Forgery

The company’s ledgers may show payments, receivables, shareholder accounts or related-party transactions associated with the disputed document.

Accounting evidence can therefore connect document misconduct with financial consequences.

Check for Multiple Forged Documents

Once one unauthorized signature is discovered, conduct a targeted review for similar documents.

The problem may not be limited to a single transaction.

Build a Signature-Use Timeline

Prepare a chronology listing each disputed document, supposed signature date, investor’s actual location, person receiving the document, transaction resulting from it and financial consequence.

This can significantly clarify a complex criminal complaint.

Foreign Investors Should Preserve Evidence Abroad

Relevant records may be outside Turkey, including foreign bank statements, travel records, emails, board communications and genuine signature samples.

Preserve these documents promptly.

Translation May Be Necessary

Documents submitted in Turkish criminal proceedings may need appropriate translation.

Foreign investors should ensure translations accurately reflect financial and corporate terminology.

Can the Investor Give Evidence From Abroad?

Depending on the procedural stage and circumstances, the handling of statements and evidence for a foreign complainant who is outside Turkey should be planned carefully.

The investor should not assume that physical presence in Turkey is required for every procedural step.

A Lawyer Can Coordinate the Turkish Proceedings

A foreign investor may authorize a Turkish lawyer to obtain available records, prepare complaints, monitor the investigation and coordinate related corporate and civil proceedings within the scope of legally granted authority.

Criminal Proceedings Alone May Not Recover the Assets

This is a critical practical point.

Even if a criminal complaint is justified, the investor may need separate commercial, corporate or civil proceedings to invalidate transactions, establish share ownership, recover money or prevent disposal of assets.

Consider Urgent Injunctive Measures

If real estate, shares, bank funds or other assets remain at immediate risk, evaluate whether temporary judicial protection is available.

Waiting for the criminal investigation to conclude can sometimes allow the disputed assets to disappear.

Can a Forged Share Transfer Be Cancelled?

Potentially, depending on the transaction and evidence. The relevant company-law and civil-law remedies should be examined independently from the criminal complaint.

A criminal finding can be important evidence but should not necessarily be awaited before protecting corporate rights.

Can Money Transferred Using the Forged Signature Be Recovered?

Potentially. Recovery depends on where the funds went, the legal basis of the transfer, recipients involved and available civil or commercial remedies.

Tracing should begin immediately.

Third Parties May Complicate Recovery

If assets have already been transferred to third parties, questions concerning their knowledge, legal position and subsequent transactions may arise.

Early action is therefore particularly important.

Preserve Evidence of Financial Loss

Keep records of unauthorized withdrawals, lost dividends, diverted company assets, professional expenses and other measurable losses.

Financial evidence may become relevant to compensation claims.

Director Removal May Need to Be Considered

Where the suspected director remains in office and continues controlling company records or assets, shareholders should examine available corporate remedies concerning management authority.

This issue should be coordinated carefully with the criminal investigation.

Change Digital Access Where Legally Appropriate

If compromised corporate credentials are suspected, authorized company representatives should consider protecting company email, banking, accounting and document-management systems.

Preserve logs before making changes where they may constitute evidence.

Notify Business Partners Selectively

Where the disputed authority creates an ongoing risk that third parties will rely on unauthorized instructions, carefully targeted notifications may be appropriate.

Communications should be factual and legally reviewed.

Immediate Action Plan for a Foreign Investor

A foreign investor discovering unauthorized use of their signature should immediately obtain the disputed document, preserve the original where possible, collect genuine signature samples, document their location on the alleged signing date, preserve emails and messages, review company and bank records, identify transactions produced by the document, investigate other possible forged documents, assess continuing director authority, prepare a detailed criminal complaint and consider urgent corporate, civil or commercial measures to prevent further loss.

Frequently Asked Questions

Is copying a foreign investor’s signature onto a company document potentially criminal in Turkey?

Potentially. The legal characterization depends on the type of document, how the signature was created and how the document was used.

What if the signature looks exactly like the investor’s real signature?

Visual similarity does not resolve authenticity. Expert examination and surrounding evidence may be necessary.

What if the investor signed a blank document?

The dispute may then concern unauthorized completion or use of a genuinely signed document. The original authorization and subsequent use should be investigated carefully.

Can handwriting analysis be requested?

Potentially. Signature authenticity disputes frequently require expert examination.

What if the director had authority to represent the company?

Corporate representation authority does not automatically authorize a director to place the investor’s personal signature on a document.

Can travel records prove the signature is false?

They can provide important supporting evidence, particularly if the document supposedly required physical execution in Turkey while the investor was abroad.

Should the investor file only a criminal complaint?

Not necessarily. Separate corporate, commercial or civil remedies may be required to protect shares, recover assets or challenge transactions.

Can company bank accounts be reviewed?

Where legally available, bank and accounting records can be crucial for determining whether the disputed document was used to transfer or divert funds.

What if several directors participated?

The investigation should examine the role of each participant, including who prepared, signed, used or benefited from the disputed document.

What should the foreign investor do first?

Secure the disputed document and related evidence before confronting suspected participants. Then determine what transaction the unauthorized signature produced and whether urgent measures are required to protect shares, money or company assets.

Client-Focused Legal Support for Foreign Investors Facing Signature Forgery in Turkey

Unauthorized use of a foreign investor’s signature can involve forged corporate documents, unauthorized share transfers, bank transactions, misuse of powers of attorney, diversion of company assets and simultaneous criminal and commercial proceedings. Fırat Fesih Kaya Law Office assists foreign investors facing suspected document forgery and corporate misconduct in Turkey. Lawyer Fırat Fesih Kaya provides legal assistance in preserving evidence, preparing criminal complaints, reviewing company and banking records, coordinating forensic signature evidence, protecting shareholder rights and pursuing urgent remedies against unauthorized transactions.

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