Cross-Border Fraud Between HK and Mainland

Cross-border fraud between Hong Kong and mainland China is one of the most common patterns of financial fraud in the region. Hong Kong bank accounts are frequently used as the first landing point for fraudulent funds — and in many cases, the money is moved onward to mainland China within hours. If you are a victim of this type of fraud, understanding how the two legal systems interact is essential for any realistic chance of recovery.

Why Fraudsters Route Money Through Hong Kong

Hong Kong is a major international financial centre with an open banking system. Wire transfers to Hong Kong bank accounts are routine and raise fewer immediate red flags than transfers to many other jurisdictions. Fraud syndicates take advantage of this in several ways:

• Mule accounts: Criminal networks recruit individuals to open or hand over Hong Kong bank accounts, which are then used to receive fraud proceeds. The Hong Kong Police have arrested hundreds of individuals for lending their accounts to fraudsters.
• Rapid onward transfer: Once funds land in a Hong Kong account, they are quickly moved — sometimes within minutes — through multiple layers of accounts, often ending in mainland China bank accounts. The speed of these transfers is the single biggest obstacle to recovery.
• Jurisdictional gap: Fraudsters exploit the fact that Hong Kong and mainland China operate separate legal systems. A court order obtained in Hong Kong does not automatically freeze a mainland bank account, and vice versa.

In practice, the account holder in Hong Kong is rarely the actual fraudster. They are typically a “mule” — someone who has been recruited, paid, or deceived into providing their account. The people orchestrating the fraud are usually located elsewhere, often in mainland China or Southeast Asia.

Step 1: Freeze What Remains in Hong Kong

Speed is everything. If funds are still sitting in a Hong Kong bank account, they can be frozen before they are moved further. The two main mechanisms are:

Police freeze (No Consent Letter)

Report the fraud to the Hong Kong Police immediately. The Anti-Deception Coordination Centre (ADCC) operates a 24-hour hotline at 18222. Upon receiving a report, police can request the Joint Financial Intelligence Unit to issue a No Consent Letter to the recipient bank under the Organised and Serious Crimes Ordinance (Cap. 455). This causes the bank to freeze the account to avoid its own money laundering liability.

This is fast but temporary — it is an administrative measure, not a court order, and the police can revoke it at any time.

Court freezing order (Mareva injunction)

For stronger protection, a solicitor can apply to the Court of First Instance for a Mareva injunction, typically within 1–2 days. This is a binding court order that prohibits the defendant from disposing of assets. Breach is contempt of court, punishable by fines or imprisonment. A Mareva can cover assets in Hong Kong only, or worldwide.

For a detailed explanation of these mechanisms, see What to Do If You’ve Been Scammed in Hong Kong.

Step 2: Identify the Account Holder

In most fraud cases, the victim does not know the identity of the person holding the receiving account. A Norwich Pharmacal order compels the bank to disclose the account holder’s name, address, bank statements, and account-opening documents. This is usually accompanied by a gagging order preventing the bank from alerting the account holder.

Once you know the account holder’s identity, you can determine whether they are a Hong Kong or mainland China resident — which will shape the entire recovery strategy.

Step 3: Civil Proceedings in Hong Kong

The primary causes of action in Hong Kong fraud litigation are unjust enrichment and constructive trust. You sue the account holder who received your money — not the orchestrator of the fraud (who is usually unidentifiable or unreachable).

The standard civil procedure involves:

1. Filing a writ of summons against the account holder
2. Serving proceedings (if the defendant is in mainland China, service must comply with the arrangements for judicial assistance between the two jurisdictions)
3. Obtaining judgment — frequently by default, as mule account holders often do not respond
4. Enforcing the judgment through a garnishee order (now called a “third party debt order”) that directs the bank to pay the frozen funds to you

If the defendant is a mainland China resident, you will need leave of the court to serve proceedings outside Hong Kong under Order 11 of the Rules of the High Court (Cap. 4A). Service on the mainland is handled through judicial assistance channels and can take several months.

Step 4: Enforcing a Hong Kong Judgment in Mainland China

This is where the situation becomes more complex — and where recent legal developments have opened new possibilities.

The new regime: Cap. 645 (effective 29 January 2024)

The Mainland Judgments in Civil and Commercial Matters (Reciprocal Enforcement) Ordinance (Cap. 645) implements the 2019 Arrangement between Hong Kong and the mainland on reciprocal recognition and enforcement of judgments. It replaced the much more limited previous regime under Cap. 597, which only applied to money judgments arising from contracts containing exclusive Hong Kong jurisdiction clauses.

Key features of Cap. 645:

• Broad scope: Covers judgments in most civil and commercial matters, including compensation awarded in criminal proceedings. The ordinance uses an exclusion list rather than a restrictive list — most civil and commercial judgments are covered.
• Both monetary and non-monetary relief: Unlike the old regime, injunctions and specific performance orders can now be enforced, not just money judgments.
• No exclusive jurisdiction clause required: This is a major improvement. Previously, if the contract did not contain an exclusive jurisdiction clause in favour of Hong Kong, enforcement in the mainland was essentially impossible. That requirement has been removed.
• Registration process: The judgment creditor applies to the Intermediate People’s Court in the mainland for registration. In Hong Kong, registration of mainland judgments is handled by the Court of First Instance via originating summons.
• Two-year time limit: Applications for registration must be made within two years of the judgment becoming enforceable.
• Exclusions: Certain categories remain excluded — insolvency and bankruptcy, certain arbitration matters, certain matrimonial and succession cases, and some intellectual property and maritime matters.

What mainland enforcement looks like in practice

Once a Hong Kong judgment is registered with a mainland court, the mainland enforcement system can be vigorous. Mainland courts have powers to:

• Enquire about, freeze, and seize all assets under the defendant’s name — bank accounts, properties, securities, vehicles
• Restrict the defendant’s high-level spending (travel, luxury purchases)
• Place the defendant on a national list of persons in default of enforcement obligations
• Conduct fresh asset enquiries at six-monthly intervals

These measures can be significantly more aggressive than Hong Kong’s enforcement tools, and they apply across all of mainland China — not just the province where the court is located.

Honest assessment

Cap. 645 is a significant legal development, but it came into force only in January 2024 and its practical application to fraud recovery cases is still developing. Key uncertainties include:

• How mainland courts will handle fraud-related judgments obtained against mule account holders, particularly default judgments
• Speed of registration and enforcement — the mainland court system processes a very high volume of cases, and enforcement timelines can vary
• Asset tracing on the mainland — even with an enforceable judgment, locating the defendant’s assets in mainland China can be challenging without the assistance of mainland lawyers
• Costs — pursuing enforcement in the mainland involves instructing mainland lawyers in addition to your Hong Kong solicitor, adding a second layer of legal fees

In practice, Cap. 645 works best when you already know the defendant has identifiable assets in mainland China. If the defendant is a mule with no significant assets, enforcement on the mainland — even with the new regime — may not yield meaningful recovery.

Reporting to Mainland Police

If the fraud was orchestrated from mainland China, consider also reporting it to mainland public security authorities. You can:

• Report through the Hong Kong Police, who liaise with mainland public security through the Police Liaison Bureau and the Liaison Office of the Central People’s Government in the HKSAR
• Report directly to the public security bureau in the relevant mainland city, either in person or through a mainland lawyer

Mainland police have the power to freeze bank accounts and seize assets as part of criminal investigations. In some cases, mainland criminal proceedings can lead to asset recovery through restitution orders — though this is separate from the civil enforcement process and is not within the victim’s direct control.

Practical Difficulties

It is important to have realistic expectations about cross-border fraud recovery:

1. Speed of fund movement: In most cases, the money has already left the first Hong Kong account by the time you discover the fraud. It may have been split across dozens of accounts in both Hong Kong and mainland China.
2. Mule account holders: The people holding the accounts are usually recruited mules with few assets of their own. Obtaining a judgment against them may not result in meaningful recovery.
3. Separate legal systems: Despite improvements like Cap. 645, Hong Kong and mainland China remain separate legal jurisdictions. There is no single court order that freezes assets in both places simultaneously. Each jurisdiction requires its own legal proceedings.
4. Cost-benefit analysis: Cross-border recovery involving proceedings in both Hong Kong and mainland China is significantly more expensive than a purely domestic case. For lower-value fraud, the costs may outweigh the realistic prospect of recovery.
5. Time: Even in favourable circumstances, cross-border recovery typically takes 12–24 months from first instruction to meaningful enforcement in the mainland. Defended or complicated cases take longer.

What You Can Realistically Do

The most effective approach for cross-border fraud between Hong Kong and mainland China follows this priority order:

1. Act within hours, not days. Report to the Hong Kong Police (ADCC hotline 18222) and instruct a Hong Kong solicitor immediately. Every hour of delay reduces the chance that funds are still in a Hong Kong account.
2. Freeze first, investigate later. The priority is obtaining a police freeze or Mareva injunction over whatever funds remain in Hong Kong. Detailed investigation of the fraud chain can follow.
3. Use disclosure orders to trace the money. Norwich Pharmacal orders can reveal where the funds went after the initial Hong Kong account. If funds were transferred to other Hong Kong accounts, those can also be frozen.
4. Assess whether mainland enforcement is worthwhile. Once you have a Hong Kong judgment, evaluate whether the defendant has identifiable mainland assets before committing to the additional cost of Cap. 645 registration and mainland enforcement.
5. Engage mainland lawyers when needed. If you proceed with mainland enforcement, you will need a mainland Chinese lawyer in addition to your Hong Kong solicitor. Your Hong Kong solicitor can refer you to appropriate mainland counsel.

Frequently Asked Questions

Can I sue the fraudster directly in mainland China instead of Hong Kong?

You can, but it is usually more practical to start proceedings in Hong Kong if the funds first passed through Hong Kong bank accounts. Hong Kong’s disclosure and freezing order mechanisms are well-established and fast. Once you have a Hong Kong judgment, you can register it in the mainland under Cap. 645.

Does the Hong Kong police freeze apply to mainland bank accounts?

No. The Hong Kong Police can only freeze Hong Kong bank accounts. Mainland bank accounts require action by mainland public security authorities. If you report the fraud to both Hong Kong and mainland police, there is some coordination between them, but they operate separate freezing mechanisms.

How much does cross-border recovery cost?

Costs vary significantly. A straightforward Hong Kong case (undefended, funds still frozen) may cost HK$60,000–HK$100,000. If mainland enforcement is required, expect substantial additional costs for mainland legal fees, court fees, and translation. Your solicitor can provide a more specific estimate based on your circumstances.

Is Cap. 645 retroactive?

No. Cap. 645 applies only to judgments given on or after 29 January 2024, when the ordinance came into force. Judgments given before that date cannot be registered under this regime.

What if the funds were converted to cryptocurrency?

Hong Kong courts recognise cryptocurrency as property and can grant freezing orders over crypto assets. If funds were moved from a Hong Kong bank account to a cryptocurrency exchange, Norwich Pharmacal orders can compel Hong Kong-based exchanges to disclose transaction records and wallet addresses. However, once crypto assets move to non-custodial wallets or overseas exchanges, recovery becomes significantly harder.