investigation, the summons by phone, and the fact that they were called to appear in a private home.127 The Prosecution Service argued that it was important to secure the largest amount of elements for the investigation and that they were summoned to a house that was safeguarded by the institution.128 In turn the Prosecution Service considered that the open opposition of the legal representatives of María de Jesús Alvarado Espinoza, Patricia Reyes Rueda, Jaime Alvarado Herrera, and José Ángel Alvarado Favela for them to approach the Special Prosecution Service has been an obstacle in securing the best results in the investigation.129 123. In addition, according to a report forwarded by the State on May 21, 2010, on the basis of the case file for the above-mentioned preliminary inquiry, information was requested on the incidents of the disappearance of the alleged victims from the Human Rights Promotion and Defense Unit of SEGOB130, PGJE131, State Delegate of the Attorney General's Office of the Republic in the State of Chihuahua,132 the PGJM133, Governor of the State of Chihuahua134, President of the Municipality,135 the Secretary of Federal Public Security of the State,136 and the State,137 as well as other bodies. Likewise, an intervention was carried out so that the Ministerial Federal Police Force would investigate the incidents and the preliminary investigation that had been conducted by PGJE was received from it.138 127 In a communication of March 11, 2011, the legal representative of the alleged victims indicated that the next of kin of Nitza Paola Alvarado Espinoza, José Ángel Alvarado Herrera, and Rocío Irene Alvarado Reyes had provided all the information they had and that attending to the meeting referred to placed them in a situation of risk; he also indicated to the Prosecutor of FEVIMTRA that, at the meeting of March 4, she blamed the family for the absence of an investigation. Annex I. Case file. Volume XVIIII. Response from the legal representative of the Paso del Norte Human Rights Center to the summons sent by FEVIMTRA, March 11, 2011, page 561 of the pdf file (Annex to the brief of observations on the merits by the petitioners, received on November 3, 2014); 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. 128 Annex I. Case file. Volume XVIIII. Report of FEVIMTRA addressed to the Attorney General's Office of the Republic, January 10, 2011, page 291 of the pdf file (Annex to the brief of observations on the merits by the petitioners, received on November 3, 2014); 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. 129 Annex I. Case file. Volume XXI. Statement declining jurisdiction for the preliminary inquiry AP/PGR/FEVIMTRA/TRA/009/2010, September 30, 2011, page 158 of the pdf file (Annex to the brief of observations on the merits by the petitioners, received on November 3, 2014); 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. 130 Annex I. Case file. Volume XVII. Request for information addressed to the Secretariat of the Governor's Office, March 8, 2010, page 12 of the pdf file (Annex to the brief of observations on the merits by the petitioners, received on November 3, 2014). 131 Annex I. Case file. Volume XVII. Request for information addressed to the District Attorney's Office for Justice of the State of Chihuahua, March 8, 2010, page 13 of the pdf file (Annex to the brief of observations on the merits by the petitioners, received on November 3, 2014). 132 Annex I. Case file. Volume XVII. Request for information addressed to the State Delegation of the Attorney General's Office of the Republic in the State of Chihuahua, March 8, 2010, page 16 of the pdf file (Annex to the brief of observations on the merits by the petitioners, received on November 3, 2014). 133 Annex I. Case file. Volume XVII. Request for information addressed to the Attorney General for Military Justice, March 10, 2010, page 33 of the pdf file (Annex to the brief of observations on the merits by the petitioners, received on November 3, 2014). 134 Annex I. Case file. Volume XVII. Request for information addressed to the Governor of the State of Chihuahua, March 11, 2010, page 40 of the pdf file (Annex to the brief of observations on the merits by the petitioners, received on November 3, 2014). 135 Annex I. Case file. Volume XVII. Request for information addressed to the Municipal President of Buenaventura, Chihuahua, March 11, 2010, page 43 of the pdf file (Annex to the brief of observations on the merits by the petitioners, received on November 3, 2014). 136 Annex I. Case file. Volume XVII. Request for information addressed to the representative of the Public Security Secretariat, March 11, 2010, page 46 of the pdf file (Annex to the brief of observations on the merits by the petitioners, received on November 3, 2014). 137 Annex I. Case file. Volume XVII. Request for information addressed to the representative of the Public Security Secretariat of the State of Chihuahua, March 11, 2010, page 49 of the pdf file (Annex to the brief of observations on the merits by the petitioners, received on November 3, 2014). 138 Annex XX. Brief of the State sent as part of the MP 10-10 proceedings with the I/A Court H.R. on May 21, 2010.