Part 5 Additional Mutual Assistance
ยง 57 Service of Process
(relating to Article 58 para. 7 sentence 4, Article 93 para. 1 (d) of the Rome Statute)
(1) The provisions of the Code of Civil Procedure (Zivilprozessordnung) apply mutatis mutandis to proceedings regarding service of process.
(2) Service of a summons of the Court on the accused in the form of substituted service is not allowed.
Service of documents - national procedures for ICC proceedings
EDIT.