The opposition Pheu Thai Party on Sunday demanded Gen Prawit Wongsuwon, the caretaker prime minister and director of the Internal Security Operations Command (Isoc), tackle the patronage system in the security agency.
Probes have been launched to determine whether any authorities abused their power to help a police corporal, accused of abusing her maid, join the police force and land other state jobs.
Senator Thani Onlaied and two brothers of the caretaker prime minister, Adm Sitthawat Wongsuwon and Pol Gen Patcharawat Wongsuwon, will be called for questioning in alleged connection with helping Kornsasi Buayaem and her maid get state jobs.
Senator Thani Onlahiad has admitted to a previous close relationship with a policewoman whose alleged abuse of her maid has made headlines, saying they had lost contact long ago.