Although I've played through DD several times, this time I'm stuck. I have the evidence from the dwarven mines and the King asked for it. However, I can't get the evidence to him because the dwarfs at the King's entrance take all my belongings, including the evidence. Of course, they also take my portal stones.

I'm sure there must be a simple solution, but I can't figure it out and didn't find an answer searching the internet. What do I need to do?