Hans-Peter Vietze was a German

Germany

Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

 Mongolist. He was the editor of a Mongolian-German dictionary, and worked as translator on a broad range of occasions.

Hans-Peter Vietze completed his studies in Mongolian, Turkic and Altaic Studies at Berlin

Berlin

Berlin is the capital city of Germany and is one of the 16 states of Germany. With a population of 3.45 million people, Berlin is Germany's largest city. It is the second most populous city proper and the seventh most populous urban area in the European Union...

's Humboldt University in 1960. In the following years, he travelled to Mongolia several times, completed his doctorate, and in 1976 he became Professor for Mongolian studies at the Humboldt University. In the early 2000s, he worked as a freelance translator and counselor. On Sundays, he could usually be found at Berlin's Tegel Airport

Berlin-Tegel International Airport

Berlin Tegel "Otto Lilienthal" Airport is the main international airport in Berlin, Germany. It lies in Tegel, a section of the northern borough of Reinickendorf, northwest of the city centre of Berlin. Tegel Airport is notable for its hexagonal terminal building around an open square, which...

, assisting the immigration department

German Federal Police

The Bundespolizei is a uniformed federal police force in Germany. It is subordinate to the Federal Ministry of the Interior...

 with handling incoming MIAT

MIAT Mongolian Airlines

MIAT Mongolian Airlines , Mongolian Civil Air Transport) is Mongolia's national airline, headquartered in the MIAT Building in Ulaanbataar, the capital...

passengers.