CHAPTER 2. SURRENDER OF PERSONS TO THE ICC
ยง 4. Hearing and ruling by the District Court
Section 21
2. A copy of the application required in accordance with subsection 1 shall be served on the person claimed. He shall be informed in this connection of the facts for which his surrender has been requested, together with the moments and places at which they were committed, and that the request is for his surrender to the ICC. The first and second sentences shall also apply in cases where the public prosecutor supplements or changes his application following a request received subsequently. The person claimed shall be informed of the receipt of additional documents which added to the file.
Rights during investigation - informed of belief that crime has been committed
EDIT.