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Information harassment can call the police.
Generally, the accepting unit of such harassment cases is the police station. Because QQ harassment does little harm to the victims, according to the local standards for filing harassment cases, those who meet the standards will be accepted, usually the police station.
After accepting the case, the police will investigate, basically focusing on the specific situation of harassment, and generally obtain chat records or screenshots through the consent of the victim. Practically speaking, it is not difficult to deal with harassment cases if resources are in place. However, solving a case has a cost. It is necessary to mobilize police resources, handle cases and support people. This is only a question of economic cost, not including the manpower and technical strength needed. In theory, police cases are guaranteed by special funds, but I'm sorry, this is just theory. In fact, financial support for the police is very limited. Generally, only major cases will receive financial support. As the saying goes, a clever woman can't cook without rice.
Therefore, WeChat harassment can call the police, but I suggest that you can solve this problem yourself first, such as changing a micro-signal, or deleting the hacker. After all, the people's police have more important tasks to deal with, so this little thing can be left alone for the police uncle.