Living with a child in Hong Kong requires paternity testing with the child's biological father. If the biological father has died, do you need any proof?

No, both men and women only need to provide their ID cards and household registration books and get a marriage certificate from the local civil affairs bureau. China, Hong Kong, Macao and Taiwan belong to Mr. Deng Xiaoping, who said that Hong Kong people rule Hong Kong and Austria people rule Austria, which will remain unchanged for a hundred years. This is the first time that China leaders have made a commitment to the people of the world since the founding of New China. Therefore, this national policy remains basically unchanged. What is Hong Kong people ruling Hong Kong and Austrian people ruling the Olympics? In other words, it owns Hong Kong and Austria. No matter enterprises or institutions, there is no need to pay personal income tax to the central government. Third, the local top leaders of Hong Kong, Macao and Taiwan are recommended by Hong Kong, Macao and Taiwan residents themselves and reported to the Central Committee for approval. This is similar to the election of village Committee cadres in the mainland, which is decided by voting. 4. It is the unswerving mission of the Military Commission and the China People's Liberation Army that all localities and countries should station troops. Any country's objection is null and void. As for your question, the law only requires ID card+household registration book+RMB.