Document Forgery & Alteration Lawyer
Document Forgery & Alteration Lawyer | Understanding the charge and building a defense around intent
Korean criminal law treats "making" a false document, "altering" an existing genuine document, and "using" (uttering) a forged document as three distinct acts, each independently punishable. A person can be charged with only one of these, or with all three if they made a document, altered it later, and then submitted it somewhere. Because each stage requires proof that the person knew the document was false or knew it had been forged, disputing that knowledge is very often the central issue in these cases.
Document Forgery & Alteration | What Counts as Forgery, Alteration, or Use
The Criminal Act does not punish 'document forgery' as a single crime. It separates the act of creating a false private document, altering a genuine one, forging a document in someone else's name that carries legal or business significance, and forging public or official documents, and then separately punishes the act of using any such forged document. Which category your case falls into changes both the potential sentence and what the prosecution must prove.
This covers making a false document or altering a genuine one in a way that could affect another person's rights or duties, or that certifies a fact, without authority to do so. Common examples include filling in someone else's name on a contract or fabricating a lease agreement. The prosecution must show the document affects rights, duties, or certification of facts, and that the person acted without the right to make or change it.
Forging or altering a document issued by a public official or a public office (a Family Register extract, a certificate of employment issued by a public agency, a court document, etc.) is treated more seriously than forging a private document because it undermines the reliability of public administration. Sentencing here tends to be markedly heavier than for private documents.
This applies where a document is created in another specific person's name and that document has legal or commercial consequences, such as a power of attorney, a certificate of seal impression, or a corporate document signed as if by a company representative. Courts look closely at whether the named person's identity was essential to the document's function.
Simply presenting, submitting, or otherwise putting a forged document to its intended use — for example, handing a fabricated employment certificate to a bank, or filing a forged contract in a civil suit — is a separate crime from making the document. A person who did not create the forgery but knowingly used one made by someone else can still be fully liable under this provision.
Why the Same Facts Can Result in Multiple Charges
If a person drafts a false contract and later submits it to a court or a bank, prosecutors will often charge both the forgery/alteration count and the separate use count, because each act is legally distinct even though it arises from one course of conduct. Whether these charges merge for sentencing purposes, or are treated as concurrent offenses, is a technical issue worth raising with defense counsel early.
Document Forgery & Alteration | Why Prosecutors Charge Each Stage Separately
Investigators typically trace a forged document back through three questions: who made or altered it, who knew it was false, and who actually used it. Each answer can point to a different person or a different charge, so understanding these stages helps you see exactly what the prosecution needs to prove against you specifically.
Making vs. altering: the document did not need to be entirely fabricated
Alteration charges apply even where most of a document is genuine and only a date, amount, or signature was changed without authority (형법 제231조). Many clients assume that because the original document was real, changing one figure on it is a minor issue, but the law treats an unauthorized alteration of a legally significant fact the same way it treats making a document from scratch.
Being the 'user' without being the 'maker' is still a separate crime
If someone else created the forged document and you only submitted or presented it, you are not charged under the forgery provision but under the use provision (형법 제234조, referencing 제225조 through 제233조 depending on the type of document). This distinction matters for sentencing, and it also means the prosecution has to separately prove you knew the document was forged when you used it.
Public documents carry heavier consequences than private ones
Because Article 225 protects the reliability of public administration rather than just private rights, forging or altering documents issued by government agencies, courts, or public officials is punished more severely than the equivalent act involving a private contract or certificate. Cases involving fabricated Family Register records, court filings, or official certificates should be assessed with this heavier framework in mind from the outset.
Document Forgery & Alteration | Disputing Intent and Knowledge of Falsity
Forgery and use-of-forged-document offenses require intent (고의) — the prosecution must show you knew the document was false, or knew it had been forged, at the time you made, altered, or used it. Because intent is rarely admitted outright, it is usually proven or disputed through circumstantial evidence, and this is where a well-prepared defense can change the outcome.
Lack of authority is not automatically criminal intent
Signing a document on behalf of a family member or business partner without written authorization can look like forgery on paper, but if the person genuinely believed they had implied consent or ongoing authority to act, this can undercut the intent element. Evidence of a prior pattern of acting on someone's behalf, or communications suggesting authorization, is often central to this defense.
Passing along a document without knowing it was forged
For use-of-forged-document charges, the person who merely delivered or submitted a document created by someone else can argue they had no reason to suspect it was false. Timing, the relationship between the parties, and whether the document's defects were obvious on its face all factor into whether this argument is credible.
Distinguishing forgery from a genuine but disputed document
Sometimes what looks like a forgery dispute is actually a civil disagreement over whether a document was validly signed or whether its content is accurate — these are not automatically criminal matters. Where the underlying facts are contested (for example, whether a signature is authentic), expert handwriting or forensic document analysis can be requested during the investigation or trial stage.
⚠ Statements made during the police investigation are hard to walk back
Early statements about how a document was created, signed, or obtained are frequently used later to establish or undercut intent, so it is worth thinking carefully — ideally with counsel — before giving a detailed account at the first interview.
Document Forgery & Alteration | From Investigation to Resolution
Counsel reviews the document in question, the surrounding circumstances (how it was created, who had access, how it was used), and any existing statements to identify which stage — making, altering, or using — is actually at issue.
You will typically be summoned for questioning as a suspect. Preparing a consistent, accurate account of your role and your state of knowledge before this interview is important because early statements shape how the case develops.
Where authenticity of a signature or the timing of an alteration is disputed, requesting a handwriting or forensic document examination can support an intent-based defense.
Prosecutors decide whether to indict, dispose of the case through a summary order (약식명령), or decline to prosecute. Cooperating with a legitimate investigation while preserving your position on intent is a balance counsel can help manage.
If indicted, the case proceeds to trial (or summary trial for less serious cases), where the prosecution must prove both the act and your knowledge of the document's falsity beyond a reasonable doubt.
Document Forgery & Alteration | How Fees Are Set
Generally set according to the stage of the case (police investigation only, prosecutorial review, or trial) and the complexity of the document and intent issues involved. A case involving multiple documents or multiple charges (forgery plus use) is typically assessed differently than a single-document case.
If agreed, this is tied to a defined favorable outcome such as a non-indictment decision, a reduced charge, or a more lenient sentence, and is discussed and fixed at the time of engagement rather than after the fact.
Handwriting analysis or forensic document examination, when necessary to dispute authenticity or timing, is billed separately as an out-of-pocket cost and is not included in the retainer.
If the case proceeds through multiple stages (e.g., summary order followed by a formal trial request, or appeal), fees for each additional stage are generally discussed separately at that point.
※ Costs vary depending on case complexity and specific circumstances; exact fees will be provided during consultation. No specific outcome is guaranteed.
Document Forgery & Alteration | Self-Check
1️⃣ If You Are Suspected of Making or Altering a Document
- Did you have any form of authorization, even informal, from the person named on the document?
- Was the change you made to an existing document limited to a fact that has legal or business significance (date, amount, signature)?
- Do you have records, messages, or witnesses that could show your state of mind at the time?
- Is the document private, or was it issued by a public agency or official?
2️⃣ If You Are Suspected of Using a Forged Document
- Did you personally create the document, or did you receive it from someone else?
- What did you know about how the document was made at the time you submitted or presented it?
- Were there visible signs (formatting, seals, dates) that might have suggested the document was not genuine?
- Have you already made statements to police or the other party about how you obtained the document?
3️⃣ Before Your First Investigative Interview
- Have you organized a timeline of how the document was created, altered, or came into your possession?
- Have you identified any documents or witnesses that support your account of authorization or lack of knowledge?
- Are you clear on the difference between admitting you handled the document and admitting you knew it was false?
