When his father returned from Soviet captivity in 1955, his mother had already had him declared dead and married the British officer Clifford Davis.
His stepfather Davis is said to have given Weyer access to diplomatic circles, through which he established business relations with the ambassadors of poor countries that could not afford professional consulates.
One focus of his business activities is said to have been in South America, where he is said to have maintained personal contacts with Paraguay's then-dictator Alfredo Stroessner.
For a short time, Weyer made headlines as chairman and candidate for chancellor of the Deutsche Freiheitspartei (DFP), founded in Munich on 18 November 1979.
For many years, Weyer was a guest on television talk shows[5] and appeared in the coverage of numerous gossip magazines as well as in advertisements for Onken GmbH.