Suddenly, a voice on the other end said: "Hello, this is the XX Public Security Bureau, we need to verify your recent bank transactions..."

Holding the phone, even a veteran in the cryptocurrency space might feel a pang of anxiety. Don’t panic just yet! The more uncertain the situation, the more you need to stay calm. The following set of coping strategies can help you investigate while avoiding creating pitfalls for yourself:

**Strategy 1: Clarify Legal Boundaries, Don't Let Yourself Take the Blame**

If the police ask you whether the transaction is legal, remember this response framework: "The buying and selling of virtual currency between individuals is not illegal in itself, but if there are issues with the source of funds, the user must bear corresponding responsibilities."

The key is to convey a message - you are just an ordinary investor conducting normal transactions on a legitimate platform, not a criminal. Speak sincerely, but be clear about your position.

**Strategy 2: When encountering refund requests, communication is greater than confrontation**

If the police inform you that the funds you received may be involved in a case and request a refund, do not get emotional. You can respond like this: "I completely understand the necessity of the investigation and will do my utmost to cooperate."

Then actively provide all materials that can prove the authenticity of the transaction, such as transaction records, transfer vouchers, chat screenshots, etc. The higher the cooperation level, the faster the issue will be resolved, and it can also minimize the risk of other accounts being implicated. Stubbornly refusing to cooperate? A small problem may turn into a big trouble.

**Strategy Three: Understanding the Processing Logic, Differentiation is Important**

Here is a key distinction point:
- If it is determined that you have directly participated in illegal activities, all associated accounts may be frozen.
- If funds are unintentionally received during normal trading, usually only the involved account will be frozen.

The core principle to remember is: actively cooperating with the investigation will not leave a record, but refusing to cooperate changes the nature of the situation, and the handling measures will escalate accordingly.

**Finally, let’s get to the point:**

Cryptocurrency trading is not child's play; every transaction may be a hidden risk. It is essential to develop the habit of "three checks":
- Is the other party's identity verified?
- Is the flow of funds clear?
- How secure is the wallet address?

In this market, staying alive for a long time is always more important than making money quickly. Protect your principal and don't let your account become a money laundering hub.