Witness in Madeleine McCann probe to sue discredited Portuguese cop for defamation

A WITNESS in the Madeleine McCann probe is to sue discredited ­Portuguese cop Goncalo Amaral for defamation.

HGV driver Helge ­Busching, 49, identified prime suspect Christian B, 44, to cops.

His evidence helped nail the convicted paedophile of a rape in Portugal in 2005 close to where Madeleine vanished in 2007, aged three.

Amaral — thrown off the case after wrongly identifying parents Kate and Gerry as suspects — branded German Busching and a pal “unreliable witnesses” in a book.

Busching told The Sun: “I’m not happy with what has been said about me by this policeman.”

His lawyer, George Tzeriz, said the criticism was “unjustified and unwarranted”.

He said: “He is a key witness in this investigation and is seen so by the police.”