war; internal war and subversive war were some of the terms used by the military jurisdiction to prosecute political prisoners; 197 b) In March 1970, the system was entrenched by an act of the Executive called the “Presidential Internal Security Directive,” which became known as the "Internal Security System." Under this directive, all national public administration bodies were subject to the ”coordination measures” of the unified command of the political repression machine. The system was implemented on two levels: 1. At the national level, it comprised the SNI and the Information Centers of the Army (CIE), the Navy (CENIMAR) and the Air Force (CISA); the centers were linked directly to the cabinets of the ministers who were members of the military. 2. At the regional level, Internal Defense Zones (ZDIs) were established, corresponding to the division of the commands of the I, II, III, IV and IV Armies. The following were established within each zone: 2.1. Internal Defense Councils and Centers of Operations (respectively, CONDIS and CODIS), consisting of members of the three branches of the Armed Forces and of the Secretariats of Security of the states, whose functions were to coordinate the acts of political repression in the respective ZDIs; and 2.2. In the second half of 1970, Departments of Information Operations (DOI) were established in São Paulo, Río de Janeiro, Recife and Brasilia, and the following year also in Curitiba, Belo Horizonte, Salvador, Belem and Fortaleza. In 1974, a DOI was established in Porto Alegre. 198 c) The 1971 CIE Interrogation Manual established that, in order to bring a detainee before a court, he should be treated in a way that would not reveal that his confession had been obtained under duress. It also indicated that the purpose of an interrogation of subversives was not to provide information for the criminal justice system; its real purpose was to obtain the most information possible. To achieve this, it was necessary to use interrogation methods that, legally, constituted the use of force. 199 d) Between 1973 and 1975, journalists of the “Voz Operária” and members of the Brazilian Communist Party (PCB) began to be abducted or detained and, at times, tortured. The so-called “Operation Radar” carried out by the Army’s Information Center and the Second Army’s DOI/CODI was an offensive by the security agencies to combat and disband the PCB and its members. The Operation did not limit its actions to detaining PCB members, but was also aimed at killing its leaders. 200 From 1974 to 1976, dozens of PCB members and leaders were detained, tortured and killed by the Operation, so that almost the whole of its Central Committee were eliminated; 201 197 Cf. Direito à Memória e à Verdade: Special Commission on Political Deaths and Disappearances (evidence file, folio 20). 198 Cf. Report of the National Truth Commission (evidence file, folios 642 and 668 to 671) and Federal Public Prosecution Service, Crimes da Ditadura Militar, pp. 56 and 57 (evidence file, folio 14254). Cf. Report of the National Truth Commission (evidence file, folio 650) and Federal Public Prosecution Service, Crimes da Ditadura Militar (evidence file, folio 14290). 199 200 Cf. Crimes da Ditadura Militar, pp. 56 and 57 (evidence file, folio 14254). Cf. Report of the National Truth Commission (evidence file, folio 3317) and Report of the National Truth Commission (evidence file, folio 634). 200 201 Cf. Direito à Memória e à Verdade: Special Commission on Political Deaths and Disappearances (evidence file, folio 20) and Report of the National Truth Commission (evidence file, folio 634). 54