It is difficult and troublesome to find the emigration records of that year at the emigration police station. The best way is to go to the local village Committee to find the archived information and try every means to find the ID number of that year. As long as there is an ID number behind it, it will be easy. You can apply for a special office at the original local police station. I will usually do it for you, and it will take a long time.

All the key is to find the ID number. Thirty years ago, the state began to manage 15-digit ID numbers. The ID number is generally not lost, but it may not be entered into the computer system.

It is too long. Look for the ID number first. I really can't find your dad's public security department, registered permanent residence. Theoretically, it is possible, but it will be particularly troublesome. I need a bunch of certificates, but I can still go.