01005783 Case File No. 002/19-09-2007/ECCC/TC E313 208. A number of documents from the DK era contain references to a ‘Committee 870’.636 Although the Co-Prosecutors submit that Committee 870 was the CPK Central Committee, it is equally plausible that Committee 870 was the Standing Committee, and the Chamber is unable to make a definitive finding in this regard.637 209. In addition to Committee 870, there was a discrete entity known as ‘Office 870’, ‘Political Office of 870’, ‘M-870’ (the ‘M’ standing for ‘munti’, the Khmer word for ‘office’) or ‘Office of the Standing Committee’ (‘Office 870’).638 As of October 1975, SUA Vasi alias Doeun was in charge of Office 870.639 KHIEU Samphan joined Office 870 in or around October 1975.640 In the words of Philip SHORT, Office 870 functioned as the “executive arm” of the Standing Committee.641 Its tasks were to implement, and to monitor implementation of, Standing Committee decisions, and to “[make] contact back and forth with each section” of the CPK’s upper echelons on behalf of the Standing Committee.642 Both Philip SHORT and David CHANDLER used the phrase “nerve centre” to describe the critically important role of Office 870 in the transmission of information to and from the Standing Committee.643 636 See e.g. DK Telegram, E3/932, 12 April 1978, p. 1, ERN (En) 00185199; DK Telegram, E3/245, 29 April 1978, p. 1, ERN (En) 00182759; Committee 870 Instructions, E3/1173, 27 February 1976, p. 2, ERN (En) 00525782. 637 Co-Prosecutors’ Closing Brief, para. 372. Some evidence suggested that Committee 870 was the Central Committee: see e.g. T. 10 January 2013 (UNG Ren), pp. 67-68; SUON Kanil Interview Record, E3/74, 21 August 2009, p. 3, ERN (En) 00384690; SENG Mon Interview Record, E3/71, 14 February 2009, p. 19, ERN (En) 00288637. A directive issued by Committee 870 purported to contain instructions from the “Party Central Committee”: see Committee 870 Directive, E3/740, 24 July 1977. However, other evidence suggested that Committee 870 was the Standing Committee: see T. 6 September 2012 (NORNG Sophang), p. 95; T. 6 May 2013 (Philip SHORT), p. 64; KAING Guek Eav Written Answers, E3/359, 20 November 2009, p. 6, ERN (En) 00434339. See also, T. 17 July 2013 (Stephen HEDER), pp. 87-88 (observing that there was ambiguity in the use of ‘Committee 870’ and expressing no firm conclusion). 638 T. 18 July 2012 (David CHANDLER), p. 121; T. 17 July 2013 (Stephen HEDER), pp. 88-89; Standing Committee Minutes, E3/182, 9 October 1975, p. 1, ERN (En) 00183393; KHIEU Samphan Interview Record, E3/37, 14 December 2007, p. 3, ERN (En) 00156754. 639 Standing Committee Minutes, E3/182, 9 October 1975, p. 1, ERN (En) 00183393; T. 29 March 2012 (KAING Guek Eav), p. 23 (clarifying that “Doeun” was SUA Vasi). 640 Book by K. Samphan: Cambodia’s Recent History and the Reasons Behind the Decisions I Made, E3/18, pp. 65, ERN (En) 00103755. See Section 8: Roles and Functions – Khieu Samphan, para. 390. 641 T. 6 May 2013 (Philip SHORT), pp. 72-73. 642 Standing Committee Minutes, E3/182, 9 October 1975, p. 4, ERN (En) 00183396; T. 8 May 2013 (Philip SHORT), pp. 26-27; Book by K. Samphan: Cambodia’s Recent History and the Reasons Behind the Decisions I Made, E3/18, pp. 66, ERN (En) 00103756. 643 T. 20 July 2012 (David CHANDLER), p. 21; T. 9 May 2013 (Philip SHORT), p. 94. Case 002/01, Judgement, 7 August 2014 - Public 116