
When Siegrfried Kirschen took charge of his first international matches he came from a country called the DDR, the German Democratic Republic. He was quite successful, having officiated at the 1986 and 1988 World Cup and at the 1992 European Championships.
well...
The former referee, who is still active as a president of his local football association
took charge of matches in the DDR Oberliga as well as the Bundesliga.
In 2006 it became known that Kirschen had been working for the Stasi (secret police), giving them information, but remember that there must be thousands who did the same even if they didn't want to.