On jurisdiction, in treaty arbitration,
We readily argue—without hesitation!
Though we all admit
That you need a BIT
Lest you concoct some weird aberration.
(For those who do not deal with investment treaty claims on a daily basis, this was the case where the Tribunal found—five years after the case had been registered with ICSID—that the BIT on which the case was based never actually entered into force.)