Answer:
What can be heard in court or used to carry briefs?
Upon your lonely journey I accompany you, whether you travel through endless mountains or seas of blue. Wherever you go, I keep your place. Lost you're not, when I'm embraced. What am I?
When you take away the whole from me there is always some left.
A trail, a union, together tied. Come across me and you will find you cannot change the course I'm on. Without me you cannot travel on. What am I?
With a halo of water and a tongue of wood, stone as skin long I stood. What am I?
The answer I give is yes, but what I mean is no. What was the question?