Thanks for the reply crewcostundercontrol, I am impressed that the minibus is so economical.
Sky Wave I have tried to find a way of linking our letter from the LBA received at the end of 2007 and posted on our intranet. But my IT skills are not up to it. The key paragraph says:
Entscheidet sich der Kommandant in Ausnahmefällen aus Gründen der Flugsicherheit dennoch für eine Landung am Bestimmungsflugplatz, ohne dass die unter Punkten 4. bzw.5 genannten Voraussetzungen vorliegen, so hat er hierüber den Luftfahrtunternehmen zur Weitergabe an die Aufsichtsbehörde ausführlich zu berichten.
In summary if you eat into alternate fuel continuing to an airfield with only one runway, such as Berlin SXF then you must report it to your company who must report it to the LBA.
It is pretty clear. As easy has a pretty big operation in SXF I am surprised this has not been flagged. I would be careful unless you want to experience german bureaucracy first hand!