Isn't it illegal for Brother Stone to seek gold in the wild?

This is not illegal. Just using the detector to explore treasures in the wild has not caused harm to society and is not an illegal and criminal act. However, according to China's laws, if precious metals such as gold are dug up in the mountains, if the quantity is relatively large, according to the law, the ownership of these minerals belongs to the state, and those who find them should voluntarily hand them in according to the law. If they hide privately, they may be suspected of committing a crime and can be punished according to law.