Assertion: visa's period | /r/HasProperty | serious threat
Facets:
value: to internal security
type: TRANSITIVE-OBJECT
Source sentences:
text: A Schengen member state is permitted to reinstate border controls with another Schengen member state for a short period where there is a serious threat to that state's "public policy or internal security" or when the "control of an external border is no longer ensured due to exceptional circumstances".