My younger brother's imprisonment will not affect my younger sister's exams. The "Lawyers Law of the People's Republic of China" only stipulates that those who have been criminally punished will not be issued a lawyer's practicing certificate. It does not stipulate that relatives are in jail or that family members cannot become lawyers.
Article 8 of the "Lawyers Law of the People's Republic of China": Have a bachelor's degree or above from a college, have been engaged in professional work for fifteen years in a field in which legal service personnel are in short supply, have a senior professional title or equivalent professional level and have corresponding professional legal qualifications Persons with sufficient knowledge may apply to practice as full-time lawyers and shall be approved to practice law after passing the assessment by the judicial administration department of the State Council. Specific measures shall be formulated by the State Council.