Police—English taillights

Hi guys, I’ve been stopped and controlled by the police today.Everything was all right, it’s all registered …. 😉 , except for my rear lights (apparently).The policeman said that these were not original.I told him that these original VW parts are just from England. He meant that he didn’t care, I had to send him an ABE for them or let them be registered by the TÜV. What is this????????Do I have to have my rear lights registered separately if Is it original VW parts?????? He then said that there is no test number to be seen and it would not be obvious if reflectors were integrated. Can someone help me there. I will not be the only one who drives through the area with such rear lights. I have added a picture of the lights….