Abdurishit Haji was suspected by authorities of supporting Uyghur separatist groups outside China, sources say.
Jewher Ilham says she will work to win freedom for her jailed father, Uyghur scholar Ilham Tohti.
A sizable fund has been set aside for informants following a deadly attack in Hotan Prefecture.
Right activists say retired judge Huang Yunmin is widely respected for his keen sense of justice and advocacy for vulnerable workers.
Rabihan Musa had petitioned in public for months for permission to visit her family outside the country.
The move will add more than 250 auxiliary officers to patrol neighborhoods and staff checkpoints on the roads.