Article 1 Code of Crimes against International Law (CCAIL)
Part 2 Crimes against International Law
Chapter 2 War crimes
Section 12 War crimes consisting in employment of prohibited means of warfare
(1) Whoever in connection with an international armed conflict or with an armed conflict not of an international character,
3. employs bullets which expand or flatten easily in the human body, in particular bullets with a hard envelope which does not entirely cover the core or is pierced with incisions,
shall be punished with imprisonment for not less than three years.
Employing bullets which flatten or expand - IAC
EDIT.