Chapter II Collection of Evidence
Article 15 (Notification When Assistance Is Not Provided)
When the Minister of Justice, after taking the measures set forth in paragraph (1), item (ii) or (iii) of Article 5, or in paragraph (2) of Article 5, deems it to be inappropriate to provide assistance, he/she shall, without delay, notify the person who has received the documents concerning the request for assistance to such effect .
Obligation to inform the Court of reasons for denial of assistance
EDIT.