Key legal question
Whether the arbitral award violated Art. 58 BV because the arbitral tribunal decided its own competence.
Extracted holding
No constitutional violation was shown, because the Solothurn authorities were not required to review whether the tribunal could itself decide competence; the debtor had not raised that specific objection in enforcement proceedings.
Extracted reasoning
Under Art. 81(2) SchKG, a foreign-canton judgment may be reviewed on competence only if that ground is invoked in the opposition/enforcement proceedings. Here the appellant merely denied the tribunal's competence, not its power to rule on competence itself.