Liet-Kynes
Doctor Liet-Kynes, Imperial Planetologist and ecologist of Arrakis, son of Pardot Kynes, and Judge of the Change at the handover of the fief.
Pardot Kynes held the post of Imperial Planetologist on Arrakis before his son held it, and had nominated him for it in advance, so the transition was painless. Doctor Liet-Kynes is planetary ecologist as well. He grew up a Fremen child, son of Pardot and a full Fremen Sandrider. When a fief changes hands on Arrakis he acts as Judge of the Change, arbiter of the succession, which puts him under orders from Padishah Emperor Shaddam IV to report to the Landsraad and to the Emperor on whether the incoming House has taken the planet legally.
How far into Dune have you read?
Set your place and this page rewrites itself to exactly that point. Nothing ahead of you will show.