Part 1
General Provisions
9. Obligation to consult, and rejection of requests from the International Criminal Court
4. Any such refusal, in the cases referred to in paragraph 1, sub-paragraphs 2 to 4 above, shall be decided on by the Federal Minister of Justice with the consent of the Federal Minister of Foreign Affairs. The case in paragraph 1, sub-paragraph 2, further requires the consent of the competent federal minister. The International Criminal Court shall be informed of any refusal of a request and the grounds thereof.
Obligation to inform the Court of reasons for denial of assistance
EDIT.