Is there a monitoring body controlling whether minimum educational standards are met in private schools?

According to international human rights law, non-government schools must conform to minimum education standards, as laid down or approved by the State. In order to ensure that this is the case, there must be a body to oversee whether these standards are met

Number of reported incidents of repression against teachers for their political, ideological or religious beliefs or teachers' union activity

Examples of incidents of repression include teachers / professors who have criticised governments and have subsequently been removed from office, imprisoned, reported missing, reported killed, etc.