Advocate

Advocate was a title in Klingon society granted to a lawyer who was tasked with defending the accused at trial.

In 2152, served as Jonathan Archer's advocate when Archer was put on trial at Narendra III. Archer would continue to call Kolos advocate years after the incident. 

In 2293, Worf served as James Kirk's and Leonard McCoy's advocate when they were put on trial for the assassination of Gorkon. 

In 2369, Benjamin Sisko offered to provide an advocate for Croden for his trial for murdering Ah-Kel.