Commission of the Ministry of Finance and Public Credit about the records and transactions that the institutions had available and which could be used to locate the alleged victims.147 129. As part of the investigation, information was requested from the head of the Emergency and Immediate Response Center of the State of Chihuahua, so that he could hand over a full copy of the recordings of the video cameras located in the municipalities of Buenaventura and Nuevo Casas Grandes, both in the State of Chihuahua, on December 29 and 30, 2009.148 130. Furthermore, on November 4, 2010, as part of the investigation's development, the Public Security Secretary of the State of Chihuahua was requested to order the appearance of a member of the Public Security and Road Network Delegation at the Ejido Benito Juárez, Chihuahua, so that he could make a statement on the incidents being investigated, and the Attorney General for Military Justice was also requested to file various proceedings, on a collaborative basis, with respect to the facilities of the 35th Infantry Battalion.149 131. On April 1, 2011, the PGR reported that the preliminary inquiry was being consolidated and that the preliminary inquiry included a police investigation report providing information about the criminal organizations operating in the State of Chihuahua, as well as the fact that they disguise themselves as if they were members attached to a government administration institution.150 132. Furthermore, on August 9, 2011, in an action jointly taken by the General Prosecution Service of Chihuahua, the next of kin of the alleged victims, and FEVIMTRA, steps were taken in a mining area of the Municipality of Buenaventura, known as the "mineshaft,"151 from which human remains were recovered and transferred to experts for their analysis, on the basis of which it was concluded that it involved four men,152 and that none of the samples pertained to Nitza Paola Alvarado Espinoza, José Ángel Alvarado Herrera, or Rocío Irene Alvarado Reyes.153 133. Despite the above, when this preliminary inquiry was closed, it was indicated that it still could not be asserted whether or not the bodies found in the "mineshaft" of the Municipality of Buenaventura in Chihuahua pertained to any of the victims of these incidents, because the expert opinion stemming from the DNA compared to the biological samples taken from the next of kin of the victims is still pending.154 The State has not provided any explanation for this contradiction regarding the remains found in the "mineshaft." 147 Annex XX. Brief of the State sent as part of the MP 10-10 proceedings with the I/A Court H.R. on April 1, 2011. 148 Annex XX. Brief of the State sent as part of the MP 10-10 proceedings with the I/A Court H.R. on October 5, 2010. Annex XX. Brief of the State sent as part of the MP 10-10 proceedings with the I/A Court H.R. on November 4, 2010; Annex I. Case file. Volume XVII. Request filed with Attorney General for Military Justice, July 27, 2010, page 943 of the pdf file (Annex to the brief of observations on the merits by the petitioners, received on November 3, 2014). 149 150 Annex XX. Brief of the State sent as part of the MP 10-10 proceedings with the I/A Court H.R. on April 1, 2011. 151 Annex I. Case file. Volume XIX. Minutes of the Ministerial Inspection, August 9, 2011, page 450 of the pdf file (Annex to the brief of observations on the merits by the petitioners, received on November 3, 2014). 152 Annex I. Case file. Volume XX. Expert opinion on forensic dentistry from the Department of Forensic Dentistry of the PGR, August 26, 2011, page 269 of the pdf file (Annex to the brief of observations on the merits by the petitioners, received on November 3, 2014). 153 Annex XX. Brief of the State sent as part of the MP 10-10 proceedings with the I/A Court H.R. on December 7, 2011; Annex I. Case file. Volume XX. Expert opinion on forensic fingerprint data from the Executive Department of Laboratories of the PGR, August 22, 2011, page 224 of the pdf file (Annex to the brief of observations on the merits by the petitioners, received on November 3, 2014); Annex I. Case file. Volume XX. Expert opinion on field criminalistics from the Department of Field Criminalistics, September 15, 2011, page 443 of the pdf file (Annex to the brief of observations on the merits by the petitioners, received on November 3, 2014); Annex I. Case file. Volume XX. Expert opinion on forensic anthropology from the General Directorate for Expert Services and Forensic Science, page 302 of the pdf file (Annex to the brief of observations on the merits by the petitioners, received on November 3, 2014). 154 Annex I. Case file. Volume XXI. Termination of preliminary inquiry AP/PGR/FEVIMTRA/TRA/009/2010, page 159 of the pdf file (Annex to the brief of observations on the merits by the petitioners, received on November 3, 2014).