It depends on the requirements of the school. Some schools have rigid requirements, while others don't. Most schools require to check the duplicate first, and then reply after passing the duplicate check. If the defense is successfully passed, you can basically graduate smoothly and get a diploma and a degree certificate smoothly. There are also some schools that reply first and then check the papers. No matter what the order, you must pass the defense and check your weight to graduate smoothly.

However, there are also some special circumstances, and the thesis defense and duplicate checking appear twice. 1, the duplicate checking rate is just up to standard. Papers will be blindly reviewed by the Ministry of Education, usually for one to three years. If you are unlucky, painting your own picture may be dangerous. 2. Be reported. If someone reports your academic misconduct, the relevant institutions will check your paper again. So, don't think that you can reply after checking the weight. Papers must be written carefully, not copied.

There is generally no need to check the duplicate after the thesis is defended, but if there is a blind drawing behind it, you need to check the duplicate.

After the thesis defense is passed, if there is a superior to check it, it just happens that your thesis is drawn. In this case, it is necessary to check it again. On the other hand, you have graduated, even for several years. At this time, if you are still drawn, or if your paper is reported to have academic misconduct by others, you need to check it again.

I believe everyone has seen a lot of such news. A public figure was exposed to academic misconduct in his thesis and was directly revoked his degree. So don't think that you can sit back and relax by passing the thesis defense. You should know whether the paper has been plagiarized or not, and don't take any chances.