I'm a non-EU citizen living in Germany (I hold an EU Blue Card which is my temporary residence permit). I'm going to apply for a UK visitor visa to visit a conference. Should I submit my Blue Card together with the other documents which I add to visa application?
I'm considering because, strictly speaking my stay in Germany is illegal without the Blue Card, thus I'd prefer to keep the original, and send only the copy. I already did like that a year ago and received a visa without any issues. But I'm not sure whether a residence permit was specified on the TLScontact page back then:
Original valid passport (or Travel document) and residence permit (if applicable)