Arbiter of Succession

The position of Arbiter of Succession is a placement within the Klingon Rite of Succession. (TNG episode: Reunion)

The duties of the Arbiter are to oversee the Rite after the death of the ruling Chancellor of the High Council of the Klingon Empire. The Arbiter is the one who also officially confirms who the new Chancellor will be after selection by the Klingon High Council. (TNG episode: Redemption Part 1)

In the one case where it was observed, it appears that the position can be appointed to non-Klingons as was the case with Captain Jean-Luc Picard after the death of Chancellor K'mpec.