Key legal question
Whether the appellants had standing to challenge the cantonal non-entry decision in mutual legal assistance proceedings.
Extracted holding
Yes, they could appeal the cantonal refusal to enter into the matter, but only within the limits of standing rules in mutual legal assistance.
Extracted reasoning
A cantonal non-entry decision under Art. 23 EIMP is itself appealable before the Federal Supreme Court, and parties to the cantonal proceedings have standing for that purpose.