Authors: Huang Wenjing, He Weiyi
With increasingly stringent global anti-money laundering standards and the implementation of China's new Anti-Money Laundering Law, cryptocurrency crimes have become characterized by " high frequency, high amount, and high concealment ." From early fake trading platforms to today's on-chain phishing and fragmented money laundering using smart contracts, victims not only face asset losses but also find themselves in a predicament of information asymmetry and difficulty in providing evidence.

However, in judicial practice, victims generally face a core dilemma: knowing that the funds are "still on the blockchain," they find it difficult to get the police to complete the seizure, freezing, and disposal . This often stems from incomplete evidence, unclear reports, and insufficient communication and cooperation , leading to missed opportunities for the best investigation.
This article combines the latest judicial practices and technological means to provide victims with a clear and feasible response path, helping to break the deadlock in the recovery process.
First point: How does the law view your cryptocurrency loss?
It depends on the nature of the matter.
Second point: If technology can track it, why doesn't the police immediately freeze the accounts?
Blockchain transaction records are publicly available, but that doesn't mean the police can take immediate action.
Police need clear evidence to freeze assets, proving that "the money was indeed defrauded from the victim and flowed to this specific address or account." The anonymity of cryptocurrency and the rapid transfers by criminals (such as using cross-chain or coin mixing tools) make the first few hours to 48 hours after a report is filed crucial. If the chain of evidence is unclear or incomplete, the police cannot effectively carry out their work.
Thirdly: The key to success lies in the "first-hand evidence" you provide.
To successfully initiate a case and freeze assets, the quality of the evidence you submit is crucial. Especially when it involves overseas platforms or complex transfer paths, chat screenshots alone are far from sufficient.
You need to prepare a package of evidence that clearly explains the following issues:
Simply put, the more professional and clear your preparation, the faster and more successful the police operation will be!
To help you effectively report a crime and advance police action, you need to prepare a clear and compelling set of evidence. This evidence can be organized and understood from the following four perspectives:
Step 1: Prove "who you are" and "where your money comes from".
This is where it all begins. You need to prove to the police:
1. Your real identity (ID card) .
2. The legal source of your invested funds. This includes:
The original records of your purchases of cryptocurrency via bank card or Alipay/WeChat Pay transfers . This proves your money is clean .
Your account information on the centralized exchange (such as UID, screenshot of real-name authentication, and linked mobile phone number) . This proves that these asset accounts belong to you and serves as the basis for future fund returns.
Step 2: Completely and accurately reconstruct "how the money was transferred?"
This is the most crucial technical evidence, and screenshots alone are insufficient. You need to compile the following three pieces of information for each instance of money being transferred out :
1. Transaction Hash (TxID) : This is the unique "identity number" of this transaction on the blockchain.
2. Wallet address : The address for sending and receiving money.
3. Precise time and amount :
Organize this information into a clear table, along with links to the results found in a blockchain explorer. This will allow police and tracking experts to clearly see the flow of funds.
Step 3: Prove that the other party is "not conducting a legitimate transaction, but committing a crime!"
This is to ensure the police accurately classify it as fraud or theft , rather than simply investment loss . You need to gather evidence to prove the platform or individual engaged in fraudulent activity, such as:
Step 4: Provide a professional "funds flow chart" to indicate key exit points.
When funds have undergone complex transfers, such as multiple transactions or coin mixing, a fund flow analysis report issued by a professional institution is crucial. This report can transform messy transaction records into a clear "fund path map" and achieve two key objectives:
1. Track the destination : Clearly indicate which platform or address your money ultimately went to.
2. Finding a leverage point : If the funds ultimately end up in a centralized exchange that requires real-name authentication, the police can use this report to quickly issue legal documents to the exchange, demanding the freezing of the relevant accounts. This is a crucial step in achieving asset recovery.
The core of the report is to point out the "exit" point where the assets ultimately flow . If the funds ultimately flow to centralized exchanges that require KYC verification, or belong to a known "OTC money laundering" black market fund pool, then the public security authorities can send a letter of assistance to the exchange or take emergency payment suspension measures.
When reporting a crime, how clearly and professionally you present the facts directly impacts the police's assessment and subsequent actions. The key lies in three points:
First point: Accurately state the nature of the case:
Don't simply say "I was scammed" or "I lost money on my investment." The police need to clearly determine that this is a criminal offense, not a simple financial dispute. You can express it like this:
This will directly guide the police to handle the case according to criminal procedure.
Second point: Clearly explain the funding path:
Use the fewest words possible to clearly state the key information. This will allow the police to quickly grasp the main points. You can organize your message using this template:
This way, the police will immediately understand that the flow of assets is clear, there may be conditions for investigation, and the situation is urgent.
Third point: Proactively provide action plans
Police officers may be unfamiliar with blockchain operations. You can proactively provide clear guidance to assist them in operating quickly and facilitating rapid progress.
The freezing of assets does not signify the end of the rights protection process. The key concern for victims is the "disposal and return of assets." The subsequent procedures mainly involve the following three core stages:
First: How can assets be legally liquidated?
In the past, selling cryptocurrencies privately through unofficial channels was very risky. Now, there are more standardized procedures: for example, pilot programs have begun in Beijing and other places, where the police entrust officially designated compliant institutions (such as the Beijing Equity Exchange) to conduct public auctions to dispose of the assets.
Second: What fees will be deducted when the refund is returned?
During the disposal process, necessary third-party service fees may be incurred, such as technical analysis and asset custody.
Third: What if the money flows overseas?
For funds that have already been transferred to overseas exchanges or addresses, there are still international cooperation mechanisms that can be explored:
Mankiw summarizes : The core of recovering your money is "legal realization, transparent return, and utilizing international mechanisms to pursue and stop wrongdoing." Understanding these pathways will help you cooperate more effectively with the police and lawyers, maximizing the safe return of your assets to you.
Safeguarding rights in the cryptocurrency field is a protracted battle against time and technological challenges. In the current legal environment, victims can no longer passively wait, but should act as "forerunners of evidence" and "providers of technology," turning passivity into initiative by building a robust chain of evidence and a professional communication mechanism.
Please remember: the earlier you intervene, the more detailed the evidence, and the more professional your explanation, the higher the likelihood of asset repatriation . Cryptocurrencies are not an untouchable lawless zone, but rather a "public ledger" where every detail leaves a trace.
1. Basic identity and account evidence
2. Fund Flow and On-Chain Evidence
For each of the transfers involved in the case:
3. Platform and Behavioral Evidence
4. Capital Analysis and Technical Report
5. Freeze Recommendation
6. Key areas of supervision during the disposal phase
When a court decides to dispose of virtual currencies, victims and their lawyers should pay close attention to the following:


