Accomplice Liability in Drug Cases Involving Privacy Coins: Dark Coins, Crypto Payments, and Investigation Risks in Korea
Why Are Privacy Coins Used in Online Drug Transactions?
Monero (XMR), Zcash (ZEC), and similar assets are commonly referred to as privacy coins or “dark coins.”
Unlike Bitcoin or Ethereum, where transaction records are generally visible on public blockchains, Monero is designed to make it difficult to identify the sender, recipient, and transaction amount through technologies such as ring signatures and stealth addresses.
For this reason, Monero and other privacy-focused assets are sometimes used in online drug transactions, including transactions arranged through Telegram, dark web forums, and social media platforms.
However, the fact that a transaction is difficult to trace does not mean that it is beyond the reach of law enforcement.
Korean investigative authorities do not rely solely on on-chain transaction data. They may also review Telegram messages, mobile device forensic data, statements from sellers and buyers, exchange records, fiat conversion history, and other evidence to identify those involved in the transaction.
In other words, privacy coins may make an investigation more complex, but they do not make an investigation impossible.
Key Korean Laws That May Apply
In drug-related cases involving privacy coins, multiple laws may apply depending on the person’s role and level of involvement.
Legal Basis
Main Conduct Covered
Possible Penalty
Narcotics Control Act, Article 60(1)2
Sale, brokerage, receipt, possession, or use of certain psychotropic substances, including substances classified under Schedules B or C
Imprisonment for up to 10 years or a fine of up to KRW 100 million
Narcotics Control Act, Article 58(1)3
Manufacturing, import/export, sale, brokerage, receipt, or possession for such purposes of Schedule A psychotropic substances
Life imprisonment or imprisonment for at least 5 years
Act on Reporting and Using Specified Financial Transaction Information
Operating a virtual asset business without the required VASP registration
Imprisonment for up to 5 years or a fine of up to KRW 50 million
Act on Regulation and Punishment of Criminal Proceeds Concealment
Concealing or disguising proceeds from drug-related crimes
Imprisonment for up to 5 years or a fine of up to KRW 30 million
Even if a person did not directly sell or possess drugs, liability may still arise if they connected buyers and sellers, facilitated payment flows, exchanged virtual assets, or helped conceal criminal proceeds.
In addition, if a person operates an over-the-counter (OTC) virtual asset service without proper registration and the service is used to process drug-related funds, separate issues may arise under Korea’s anti-money laundering and virtual asset regulations.
The applicable law and potential penalty will depend on the type of substance involved, the exact conduct, whether the conduct was repeated, whether any compensation was received, and whether the person knew or should have known the criminal nature of the transaction.
Crypto-Related Drug Investigations Are Expanding in Korea
Drug transactions in Korea are increasingly moving from offline channels to online platforms such as Telegram, dark web marketplaces, and social media.
According to media reports citing Korean police data, from January to April 2026, 9.2% of all drug offenders were reported to have used virtual assets. This was higher than the annual figure of 8.4% recorded in the previous year.
The proportion of online drug offenders has also continued to rise. Media reports indicate that the figure increased from 24.0% in 2021 to 42.0% during the January–April 2026 period.
Korean authorities are also strengthening their investigative infrastructure.
In 2026, the Ministry of Science and ICT and the Korean National Police Agency began promoting a project to develop an integrated investigation system linking dark web activity, virtual asset transaction tracing, and online drug advertisement monitoring.
The police have also established dedicated virtual asset investigation teams in major regional police agencies, including Seoul, Busan, Incheon, Gyeonggi Nambu, and Gyeongnam.
As a result, crypto-related drug investigations in Korea are no longer limited to the question of whether a coin transaction can be traced on-chain.
Investigators may analyze online communications, wallet and exchange records, fiat conversion records, device forensics, transaction patterns, and statements from co-suspects together.
Using a Privacy Coin Does Not Prevent Accomplice Liability
In a Korean drug investigation, the key issue is not simply the payment method.
The more important question is how the person was involved in the drug transaction.
The Narcotics Control Act does not only punish direct sales. It may also punish inducement, solicitation, brokerage, receipt, possession, use, importation, and manufacturing, depending on the substance and conduct involved.
For example, methamphetamine is generally treated as a Schedule B psychotropic substance under Korean law. If a person sells, brokers, receives, possesses, or uses methamphetamine, Article 60(1)2 of the Narcotics Control Act may apply, which provides for imprisonment of up to 10 years or a fine of up to KRW 100 million.
If the case involves importation or manufacturing of methamphetamine, a more serious provision may apply. Under Article 58(1)6 of the Narcotics Control Act, manufacturing or importing/exporting certain Schedule B psychotropic substances may be punishable by life imprisonment or imprisonment for at least 5 years.
This means that the applicable charge can vary significantly depending on whether the conduct involved simple use, possession, sale, brokerage, aiding and abetting, importation, or manufacturing.
Therefore, if you are contacted by Korean law enforcement, the first question should not be “Which coin was used?” but rather “What specific charge is being investigated?”
Why “I Only Introduced the Parties” May Not Be Enough
In many cases, suspects say:
“I did not sell the drugs myself.”
“I never touched the drugs.”
“I only shared a Telegram link.”
“I only helped connect two people.”
However, Korean drug laws do not only target the final seller.
If a person connects a buyer and a seller, directs someone to a sales channel, shares sales posts, helps arrange payment, or receives a commission after the transaction, the conduct may be viewed as brokerage or aiding and abetting.
The following circumstances may increase legal risk:
Repeatedly sharing Telegram channel links
Connecting potential buyers to sellers
Receiving a commission after a transaction
Receiving the commission in Monero or another virtual asset
Maintaining repeated contact with buyers or sellers
Being named in a statement by an arrested seller or buyer
In particular, receiving compensation in a privacy coin may be interpreted as an attempt to avoid detection.
As a result, saying “I only introduced the parties” may sometimes help explain limited involvement, but it can also be used as evidence that the person knowingly participated in the transaction structure.
What Evidence Do Korean Investigators Review?
In privacy coin drug cases, Korean investigators generally do not rely on blockchain data alone.
They may review the following types of evidence.
First, they may review Telegram, KakaoTalk, Discord, or other messaging records.
Even if the server is located overseas, messages, deleted data, files, images, contact information, and login records may be recovered through forensic analysis if a mobile phone or computer is seized.
Second, they may rely on statements from co-suspects.
If a seller or buyer is arrested first, the person may identify intermediaries, brokers, or payment facilitators during questioning. In that situation, even someone who was not present at the actual transaction may become a suspect.
Third, they may review virtual asset and exchange records.
Even if the privacy coin itself is difficult to trace, exchange registration records, deposit and withdrawal history, fiat conversion records, and transactions involving other virtual assets may still be reviewed.
Fourth, they may assess repetition and compensation.
A one-time message may be viewed differently from repeated introductions, repeated sharing of sales channels, or commission-based involvement. Whether the person received payment can significantly affect how the conduct is characterized.
Before attending an interview, it is important to distinguish between what the investigators may already have and what the person’s actual role was.
What to Check Before Attending a Police Interview
If you are contacted by Korean law enforcement, it may be risky to immediately state, “I did not know,” or “I did not sell anything.”
Early statements are later compared with police interview records, seized digital evidence, forensic results, and statements from co-suspects. If your statement changes or conflicts with other evidence, even limited involvement may be interpreted more unfavorably.
Before attending an interview, you should check:
The specific charge listed in the summons or notice
Whether you are being treated as a suspect or a witness
Whether your phone, computer, or other device has been seized
The scope of Telegram, KakaoTalk, Discord, or other message records
Whether any virtual asset wallet or exchange account was used
Whether any seller or buyer has already been arrested
Whether any commission or payment was received
Whether there is evidence of repeated introductions or referrals
Depending on these facts, the case may remain a witness interview, or it may develop into a full criminal investigation involving brokerage, aiding and abetting, or other drug-related charges.
Once an interview date is scheduled, it is important to prepare a clear and consistent statement strategy in advance.
Early Legal Response Matters in Privacy Coin Drug Investigations
Using Monero or another privacy coin does not mean that a person is safe from investigation.
Korean authorities are increasingly analyzing online drug transactions through Telegram records, virtual asset transaction structures, exchange and fiat conversion records, forensic evidence, and statements from co-suspects.
In drug cases, the applicable law and penalty can vary significantly depending on whether the allegation involves use, possession, sale, brokerage, aiding and abetting, importation, or manufacturing.
How you explain your role in the transaction, whether you received compensation, and how you respond to digital evidence and co-suspect statements may affect the direction of the case.
Decent Law Firm’s criminal defense team assists clients in drug investigations involving virtual assets, digital forensic issues, and alleged accomplice liability.
If you have received a police summons in Korea in connection with Monero, privacy coins, Telegram drug transactions, or virtual asset payments, it is important to review your situation before attending the interview.
This content is provided for general informational purposes only and does not constitute legal advice for any specific case.
