This ad hoc query examines the measures taken by EMN Member and Observer Countries to maintain the mother tongue of students with a migratory background. The query addresses such measures in preschool, primary school, and secondary school, as well as the economic resources and fundings to finance these measures.

On 17 September 2026, a delegation of the Council of Europe’s European Committee for the Prevention of Torture and Inhuman or Degrading Treatment or Punishment (CPT) concluded an ad hoc visit to Belgium, carried out from 8 to 17 September. The visit focused on the treatment of persons deprived of their liberty under immigration legislation.