If you encounter this kind of situation, don't argue with the police. They will first tell you why, and then they will tell you the best way to deal with it. Although I'm not being stubborn, you can't just lose your money.

The following is all in accordance with formal laws. Generally, police handle cases in a formal manner.

First of all, we need to know the attitude of national laws towards this area as follows:

To put it simply, it is okay to hold the assets at your own risk, but if it involves crimes such as money laundering, currency issuance, foreign exchange, or tax evasion, you will be in trouble.

You said you are buying and selling u, and you have order records. Then let's take a look at the country's attitude towards exchanges, as shown in the figure below.

What this simply means is that after 2017, there will no longer be such a thing as an exchange, and all the exchanges you are using now are registered overseas.

How useful do you think the screenshots and order numbers you typed out are? Logically, you need this overseas company to provide you with evidence to prove your mistake. (But here I want to say that many police officers will not force you to do anything and will handle cases reasonably.)

However, the police can retrieve bank records, which is legal and credible.

No matter what, if the victim's money went through your account, you have a problem. There is no way to explain it.

Suspected of unjust enrichment, helping others, money laundering

For those who are timid, don't want to cause trouble or have dirty clothes, do this:

Don't argue with him. You are not a stubborn person. If you encounter such a situation, ask the police if they can discuss with the victim, because you are also a victim, and see if they can negotiate compensation and settle the case. The police officer just wants to handle this case to increase his performance. For the victim, if he was cheated, he can still get his money back. How much he can get back depends on luck. If you discuss it, there will usually be a result.

The brave ones can do the following: (It is recommended for people with some connections)

First, the police have no right and will not deduct the money from your card. Only the court can do that. Most of the words the police say on the phone are threats. Second, if a bank card is frozen for half a year, it will indeed be frozen again, but you can withdraw the money once the card is restored to normal after half a year (you can check the specific time at the bank counter). Third, many police officers handling cases in economically developed areas know about virtual currency, so they will not tell you about the deduction. Simply asking about the transaction process and looking at the transaction records will be OK. However, in some relatively economically backward areas, the police will not care about your transactions. Deducting your money from the victim is the right behavior for them, so they will make such a request. To sum up, you can completely ignore it and not actively cooperate, and the police will not do anything to you or touch your money! Don't panic, just let it freeze.

No matter which one, don't go head-on. Even if you choose the second option, you should pretend to be very pitiful and tell your uncle that your wife won't let you. Social etiquette always comes first in China.