The Nature of Documents and the Limits of Expert Examination in the Crime of Forgery of Official Documents

1. Introduction

The crime of forgery of official documents , as defined in the Turkish Penal Code , is a type of crime aimed at protecting public trust, encompassing not only the act of "falsifying the document" but also the acts of altering and using the forged document

One of the most complex issues in practice is determining the nature of the forged document:

• Whether it is truly considered an "official document,"

• Whether it is capable of producing legal consequences ,

• The fact that it remains only at the level of photocopying, copying, scanning, or electronic recording does not affect the commission of the crime

• To what extent these determinations expert opinions , and at what point the judge is obliged to make a legal assessment himself?

These are the problems.

Expert opinions are frequently sought, particularly in technical matters such as handwriting or signature analysis, print-paper-ink analysis, and verification of electronic data. However, "document quality" and "legal classification of the crime" fall directly within the judge's purview; interference by an expert in this area is legally unacceptable.

2. Normative Framework: Turkish Penal Code Article 204 and Related Provisions

2.1. Structure of Article 204 of the Turkish Penal Code

Article 204 of the Turkish Penal Code regulates the crime of forgery of official documents in three paragraphs:

1. General provision (Article 204/1):
   This encompasses the act of falsifying an official document, altering a genuine official document in a way that deceives others, or using a forged official document, an act that can be committed by anyone.

2. Crime committed by a public official (Article 204/2):
   This is a specific type of crime for which a public official who commits forgery on an official document that they are authorized to prepare in the course of their duties is punished more severely.

3. Documents valid until proven falsified (Article 204/3):
   Forgery of official documents, which are legally considered "valid until proven falsified," is foreseen as an aggravated offense, and the penalty has been increased.

Therefore, the fact that the subject of the crime an official document is critically important in determining both the type of crime and the amount of punishment, placing the issue of "documentary nature" at the center of criminal proceedings.

2.2. Distinction Between Official and Private Documents

forgery of an official document (Turkish Penal Code Article 204) and forgery of a private document (Turkish Penal Code Article 207) lies in the identity of the document's creator and the public credibility it carries.

• Official document: A document prepared by a public official within the scope of their duties and authority, and which enjoys public credibility.

• Private document: A document issued by a natural person or a private legal entity that is not official in nature.

The Supreme Court's Criminal General Assembly holds that, as a rule, even when a private document is submitted to or registered with a public office, its "essence" retains its private document character; only the approval/annotation portion by the official authority becomes subject to the official document regime.

This distinction is the first legal determination the judge must make before expert examination. Because if the document is not official, Articles 207 and subsequent articles of the Turkish Penal Code, not Article 204, will apply.

3. "Documentary Nature" and Suitability for Producing Legal Effects in Official Documents

3.1. Basic Elements of Document Nature

In the Turkish Penal Code, the common element of both official and private document forgery crimes "document ." Generally, the following elements are sought in determining the nature of a document, within the framework of legal doctrine and case law:

• Written form: The content is expressed in written or permanent data form.

• Identifiability of the issuer: The document must be clear to whom it was issued (signature, seal, electronic signature, etc.),

• Suitability for producing legal consequences: The ability to prove, establish, modify, or terminate a right, or at least to use it as a means of proof.

• Deceptive ability: The forged document must appear capable of deceiving a reasonable person.

If these elements are not present together, the document is considered to have no legal standing; therefore, the crime of forgery does not arise.

3.2. The Supreme Court's Criterion of "Suitability to Produce Legal Effects"

The Supreme Court's Criminal General Assembly has emphasized in numerous rulings that the document in question legally valid and usable . Otherwise, it is stated that the document would not have evidentiary value, and therefore the crime of forgery of an official document would not have occurred.

The practical consequence of this principle is as follows:

• Drafts that do not yet have legal effect or consequences,

• Texts not prepared or approved by the relevant authorities,

• Correspondence that is not practically usable or is not binding

In most cases, the document is not considered to have reached the status of a legal document. Therefore, the defendant's action may be discussed within the scope of another crime (for example, attempted fraud); however, Article 204 of the Turkish Penal Code may not be applied directly.

3.3. Examples of Official Document Types and Documents Valid Until Proven False

Article 204/3 of the Turkish Penal Code that are "valid until proven to be forged according to the law ." Examples of documents in this category include:

• Power of attorney, sales promise agreement, and signature circular, all prepared in the form of a notarized document

• Court judgments (subject to the condition that the judgment becomes final),

• Official duty documents and minutes prepared by certain administrative authorities

These documents are included in the calculation. The penalty has been increased because they have higher probative value and are critical for the security of legal transactions.

In contrast, while documents processed by a notary public solely as authentication remain valid until proven otherwise regarding the authentication portion (signature and date), the validity of the document's content, specifically its status as "valid until proven guilty," is debatable

3.4. Document Value of Photocopies, Copies and Electronic Records

One of the most problematic aspects in practice photocopies, copies, and electronic records as documents:

• Uncertified photocopies: The Supreme Court of Turkey holds that photocopies that are not based on the original, do not bear a signature, and have not been officially certified are, as a rule, not considered documents and therefore cannot be the subject of forgery charges
  

• Certified "true copy":
  Copies certified by an authorized authority acquire a certain degree of official validity. However, whether the forgery is in the certification partor in the original content .

• Emails, WhatsApp conversations, screenshots:
  These are generally private documents or electronic data of a documentary nature; unless produced through an official authority system, it is difficult to classify them as official documents under Article 204 of the Turkish Penal Code.

• Electronically signed documents, UYAP and e-Government printouts:
  In accordance with the electronic signature law and related legislation, documents signed with a secure electronic signature and produced through an authorized public system official documents ; forgery of such documents is, in most cases, subject to the provisions of Article 204 of the Turkish Penal Code.

At this point, what matters is not whether the document is physical or electronic, but the capacity of the issuer and the legal effect attributed to the document .

4. The Legal Basis and Function of Expert Examination

4.1. Articles 63 and 67 of the Code of Criminal Procedure and the Expert Witness Law

According to Article 63 of the Code of Criminal Procedure, the opinion and views of an expert witness may be sought in cases requiring expertise, specialized, or technical knowledge ; however, expert witnesses cannot be consulted on matters that can be resolved using the general and legal knowledge required of the judicial profession .

Article 67/3 of the Code of Criminal Procedure states that the expert witness:

• He/She can only comment on matters that fall within the technical/specialized knowledge area

• in legal classifications that must be made by the judge .

The Expert Witness Law defines an expert witness as an assistant whose expertise is limited to technical, not legal, knowledge; it stipulates that individuals with legal training can only act as expert witnesses if they possess a different technical expertise.

In this context, the role of an expert witness in a trial for forgery of official documents is limited to technical determinations regarding whether the document is forged or not; matters such as whether the document is official in nature, whether the crime of forgery has occurred, and whether the aggravated form of the offense should be applied, belong to the judge.

4.2. Topics for Expert Examination in Cases of Forgery of Official Documents

In practice, the main technical areas subject to expert examination are as follows:

• Graphology and signature analysis:
  To determine whether the signature or handwriting belongs to the suspect, and to check for forgery or calligraphic discrepancies.

• Document material analysis:
  Criminal laboratory analyses including paper, ink, printing type, printer specifications, and date discrepancies.

• Examination of seals, stamps, and holograms:
  Authenticity of official seals/stamps, printing technique, and use of counterfeit seals.

• Electronic data and metadata analysis:
  Certificate verification of e-signed documents, checking for subsequent changes to the document, and examination of log records.

Since these areas involve technical matters that a judge cannot resolve with general knowledge, expert assistance is unavoidable. However, the expert report alone is not binding evidence for conviction; the judge freely evaluates the report along with other evidence.

5. Limitations of Expert Examination

5.1. The Judge's Role as a Legal Expert and the Value of Documents

The fundamental principle in criminal proceedings "the judge is an expert in the law ." In this context:

• a document is considered an official document or not,

• Whether the document is capable of producing legal consequences ,

• Whether the act constitutes a crime under Article 204, Article 207 of the Turkish Penal Code, or another type of crime,

• Whether a document has the status of a valid document until its forgery is proven,

Such matters legal classification and cannot be left to an expert.

Therefore, obtaining an expert opinion stating "this document is an official document" and "the defendant has committed the crime of forgery of an official document" is clearly contrary to Article 67/3 of the Code of Criminal Procedure.

5.2. Prohibition of Experts from Making Legal Assessments

In practice, some expert reports go beyond technical assessments:

• "The elements of the crime have been/have not been met"

• "The act constitutes the crime of forgery of official documents."

Such statements are observed. These kinds of assessments an overstepping of authority and are not binding on the judge; moreover, they are detrimental to a sound interpretation of the report.

The judge must take the technical findings in the expert report and, using their own legal knowledge, transform them into a normative conclusion .

5.3. Evaluation of the Expert Report and Resolution of Contradictions

According to Article 217 of the Code of Criminal Procedure, the judge must base his judgment on evidence discussed during the hearing and obtained in a legally compliant manner . An expert report is one such piece of evidence. However:

• The report should be clear, reasoned, and verifiable.

• The parties are guaranteed the right to object to the report and request additional reports.

• If there are multiple reports and they contradict each other, a judgment cannot be made until the contradiction is resolved; a new report or review by a higher board may be required.

Conviction decisions based solely on expert reports, without discussing other evidence, are also criticized in the Constitutional Court's individual application decisions in terms of the right to a reasoned decision, equality of arms, and the right to a fair trial.

5.4. The Obligation to Examine the Original Document and the Photocopy Problem

The Supreme Court considers it mandatory to examine the original document in forgery cases , except in exceptional circumstances; examinations based solely on photocopies are deemed insufficient in most cases

Photocopies offer limited data, both in terms of document quality and technical analysis:

• Signature and handwriting characteristics may not be fully discernible

• Physical elements such as paper, ink, and printing type cannot be examined in photocopying

• The photocopy itself may have been the subject of a separate forgery attempt.

Therefore, the defense's insistence on obtaining the original document, explaining the reasons if it cannot be obtained, and not using the photocopy as the sole evidence is critically important for a fair trial.

5.5. The Problem of Conviction Based Solely on Expert Reports

In cases of forgery of official documents, convictions are sometimes handed down solely on the basis of expert reports, without any other evidence. However:

• The expert report discretionary evidence; the judge must evaluate the report together with disputed evidence.

• The defendant's defense, witness statements, the process of preparing the document, the transaction in which the document was used, and the sequence of events should all be analyzed together.

In such a situation, an effective strategy for the defense methodological and technical objections , request an additional report or a new expert opinion, and ensure that the judge personally examines the document in court.

6. Problem Areas in Practice and Example Scenarios

6.1. Notarial Documents and Two-Layer Forgery

Notarial transactions often fall under the category of "documents valid until proven to be forged" within the scope of Article 204/3 of the Turkish Penal Code.

For example, in cases where there are allegations of forgery in power of attorney documents such as signature circulars or notarized documents:

• Expert examination may be required for signature and identity verification

• However, the official nature of the document, whether it is considered valid until its forgery is proven, and which paragraph applies must be determined by the judge.

a private document is notarized , the Supreme Court accepts that the private document regime still applies to the content of the document, while the official document regime applies to the notarization part. The type of crime will change depending on the level at which the forgery occurred.

6.2. Health Reports, Incapacity and Disability Certificates

Medical reports and expert opinions, when issued by public hospitals or authorized institutions, generally official documents . These reports include:

• A doctor's issuance of a false report intellectual forgery (falsity in terms of content).

• Forging a signature or producing a report through counterfeiting may be considered material forgery

In such cases, the expert's assessment is limited to examining signatures and seals, checking system records (Hospital Information System, e-health system, etc.), and technically evaluating the report's conformity to the actual process. Determining which behavior constitutes which type of forgery is a legal classification that should be left to the judge.

6.3. Electronic Systems and E-Signature Forgery

The increase in documents generated through UYAP, e-Government, SGK (Social Security Institution), and tax systems has also led to an increase in allegations of electronic fraud. In this context:

• Unauthorized use of the e-signature certificate,

• Generating documents by unauthorized access to the system,

• Making changes to an electronic document afterwards

In actions like these, the expert usually acts as an IT specialist . However:

• Whether an electronic printout is considered an official document,

• Whether Article 204 of the Turkish Penal Code or cybercrimes (for example, Articles 243-244) will take precedence,

• The debate on the single verb – the idea of ​​concurrence

These are legal matters and are at the discretion of the judge.

6.4. Forgery in Tender, Social Security and Tax Documents

Allegations of forgery in public procurement documents, social security declarations, tax and accounting documents are quite common in practice. In these documents:

• Work experience certificates, temporary/permanent guarantee letters, capacity reports,

• False insurance registration forms or service records,

• False official documents and approvals

These documents often have the status of official documents. The expert witness reveals technical forgery on the document, but cannot legally assess the implications of the document in terms of tender law or social security legislation, or whether "public damage has occurred.".

In such cases, the defense strategy should be to conduct a detailed legal argument regarding both the nature of the document and its potential for deception , to frame the expert report within its technical limitations, and to emphasize that the judge's legal discretion cannot be delegated.