Thanks very much for your help. Do we have to take any kind of proof with us or any kind of documents to show to the border control? Thanks in advance

Hello everyone, I am a British citizen currently living in Germany. My unmarried partner is a non EEA national. We have a child together who is also a British National. My partner currently holds an Article 10 residence card issued by the German authorities on the base of him being the parent of a B...