3) It matters not at all whether their actions are in accordance with the regulations established in Beijing.

I should clarify that the PSB have an obligation to apply the rules fairly because a Chinese citizen is directly involved. The head of the PSB HAS TO ENSURE HE FOLLOWS THE RULES. You, as mentioned next, means a foreigner with a Chinese relative.

In the event of a dispute, you can insist on an interview with the head of the PSB office. You can insist on being shown the Beijing book of rules, which is in Chinese and in English. Maybe you can be forced to take a medical, because the translation departs somewhat from the Chinese original in the particular case of the relevant clause. However, on the major elements of the book of rules, the PSB boss dare not depart from them. YOU CAN BE SURE HE VALUES HIS LUCRATIVE EMPLOYMENT TOO MUCH TO PUT HIS JOB AT RISK BY CONTRAVENING ANY MAJOR REGULATION OF THE BEIJING RULEBOOK.