The American Bar Association Rule of Law Initiative’s (ABA ROLI) Program to Support Criminal Justice in Peru was tasked by the Peruvian Attorney General’s Office with drafting a manual for prosecutors to assist them with their writing skills. The Manual on Writing for Prosecutors, developed by ABA ROLI in coordination with the Technical Secretariat for the Implementation of the New Criminal Procedure Code of Justice and Human Rights Ministry, is an essential part of ensuring that the Peruvian justice sector is prepared to work under the new Criminal Procedure Code (CPC), a law passed in 2004 marking the beginning of a transition from the former mixed-inquisitorial criminal procedure model to a new oral, accusatorial (adversarial) system.