CHAPTER II: COOPERATION WITH THE COURT
Section 3: Communication with the Court
Art. 12 Costs
1 Requests of the Court shall as a rule be executed free of charge. Exceptions are:
a. costs associated with the travel and security of witnesses and experts or the transfer of persons in custody under article 93 of the Statute ;
b. costs of translation, interpretation, and transcription;
c. travel and subsistence costs of the Judges, the Prosecutor, the Deputy Prosecutors, the following consultations, any extraordinary costs that may result from the execution of a Registrar, the Deputy Registrar, and staff of any organ of the Court;
d. costs of expert opinions or reports requested by the Court;
e. costs associated with the transport of a person being surrendered to the Court;
f. following consultations, any extraordinary costs that may result from the execution of a request.
2 Federal and cantonal authorities shall not bill each other for charges or compensation for labor arising from the execution of a request of the Court.
3 Costs associated with detention ordered by the Central Authority and, if applicable, costs of the public defender are charged to the Confederation. The corresponding rates of the Court for compensation of the host State (art. 3 para. 1 of the Statute) are used as the basis of assessment.
EDIT.