Germany’s security experts have rounded on the country’s leader, Chancellor Angela Merkel, warning that her immigration policy will “produce extremists”, and stating that the country is importing “Islamist extremism, Arab anti-Semitism, [and] national and ethnic conflicts of other nations”.

Former Interior Secretary August Hanning told Die Welt Am Sonntag (the World on Sunday): “The German security authorities are and will not be able to handle these imported security issues and the resulting reactions”, warning that not only is Germany welcoming Islamist extremists, but that it will foster resentment in the native population.

He has recommended this week that Germany closes “the border for immigrants without an entry permit in accordance with the legislation immediately, and to reject those traveling without an entry permit immediately”.

A new 10-point-plan from his office says that Mrs. Merkel should declare that Germany’s abilities to absorb more people are “exhausted”, and there should be no entry for those coming from “safe” countries, with an exception for children.

He wants the Balkans route into Germany shut off, and a restriction of family reunification, meaning that the 80 per cent male population descending on Germany would not be able to send home for their families. Mr Hanning estimates that each migrant will attempt to bring four more people each with them in the long term.

And he also wants compulsory integration and language lessons for migrants.

His comments reflect the concerns of the Minister of Internal Affairs of the Bremen district, Ulrich Maurer, who said this week: “In recent weeks, we have registered an increase in agitation attempts by Salafis in refugee centres”.

Mrs. Merkel has been coming under increased pressure from within her party, and even from the political left in her country who have warned about the increasing pressure on Germany’s infrastructure and the general public.

Her party’s poll numbers continue to decline, though she maintains a stubbornly immovable approval rating herself.