A Member State facing serious and persistent threats to public order or internal security may reintroduce for six months and periodically maintain controls at internal borders in the Schengen area of free movement of people, provided that it can be shown that such a policy is justified, Advocate General Henrik Saugmandsgaard Øe of the Court of Justice of the European Union ruled in his opinion on Wednesday 6 October (Case C-368 and 369/20).
A citizen is challenging in the Austrian courts...