My friend has just been arrested by the police in Germany and has no residence! However, he used a pseudonym and did not have a passport. What should I do? Repatriation or refugees?

This is a matter for German immigration law enforcement. Generally speaking, if the nationality of the person concerned is found and it is possible to repatriate, he will be repatriated to China. However, it's hard to say if conditions permit. First, it depends on whether the person concerned has a record of breaking the law in Germany, and will only be repatriated after the execution of the penalty. In addition, the person concerned can apply for asylum or be exempted from repatriation, and if the judgment of the German court is established, he will be exempted from repatriation.