FWIW and better late than never;
It was a Luxembourg registered C550 from ENGM to LFPB @ FL360
Ater the a/c left EKCH airspace he didnt talk to anyone and at about PAM he came on the DECO freq but by then 2F16s were in his six about 5 thousand feet below, he said Copenhagen hadn't put him over to Maastricht. Everyone was best of friends and the dutch went home.