_____ SCHENGEN is the turnstile which cannot move. Border checks are carried out by border guards. When performing their duties, border guards must fully respect human dignity and may not discriminate against persons on grounds of sex, racial or ethnic origin, religion or belief, disability, age or sexual orientation.Where there is a serious threat to public policy or internal security, an EU country may exceptionally eintroduce border controls at its internal borders for, in principle, a limited period of no more than thirty days. If such controls are to be reintroduced, the other EU countries and the Commission should be informed as soon as possible. The European Parliament should also be informed.What is threatening public policy and internal security?
Schengen 2012, Galvanised steel 220 x 70 x 70 cm