the identity of the holder. Analysis of said information was also requested from the Prosecution Service Specializing in Monitoring, Analysis, and Assessment.114 114. To date, the Commission does not have any further information about the results obtained from "processing" the information in the framework of preliminary inquiry No. 124/2009. 115. Furthermore, on February 15, 2010, María de Jesús Alvarado filed with the Special Unit for the Investigation of Missing and Lost Persons of the PGJE, Original Petition No. 070738427015124,115 requesting the return of the motor vehicle that belonged to her, which was impounded in the courtyard of the Deputy Attorney General's Office for Justice of the Northern Region (Subprocuraduría de Justicia Zona Norte).116 116. On that same date, the Special Unit for the Investigation of Missing and Lost Persons of the PGJE reached an agreement for the return of the motor vehicle which Nitza Paola Alvarado Espinoza and José Ángel Alvarado Herrera were using for transportation.117 This led to the issuance of official letter 246/2010 on February 16, 2010 by the Special Unit for the Investigation of Missing and Lost Persons of the PGJE for the return of the motor vehicle118 and the Special Unit for Motor Vehicle Theft Crimes carried out the material delivery of the motor vehicle to María de Jesús Alvarado.119 117. In February 2011, the PGJE issued an official letter requesting the collaboration of the PGR for the possibility of obtaining rescue personnel trained in rappelling to descend into a mine of the town of Benito Juárez to conduct a search, as well as to enter aerobic ponds, which required specialized troops for this purpose. This request was based on the possibility that bodies could be found there and that they could eventually be connected with the missing victims.120 118. In March 2011, the General Prosecution Service of the State of Chihuahua (previously the PGJE) had identified three sites that could be of interest to conduct inspections with experts: the outer aerobic pond of the town of Benito Juárez; the Outer Colony of the town of Benito Juárez; and the Brecha del Jabalí (Boar's Pass), which is the country road to the mines. As indicated in the closing statement of preliminary inquiry 124/2009, from these inspections no results were obtained with respect to the search for possible elements or relevant information for the investigation.121 114 See Annex I. Case file. Volume XVI. Official letter of the Official of the Public Ministry attached to the Special Investigation Unit for Missing and Lost Persons and to the Specialized Prosecutor for Monitoring, Analysis, and Evaluation, of December 15, 2010, page 422 of the pdf file (Annex to the brief of observations on the merits by the petitioners, received on November 3, 2014). 115 Annex I. Case file. Volume XVI. Petition 070738427015124, page 422 of the pdf file (Annex to the brief of observations on the merits by the petitioners, received on November 3, 2014). 116 See Annex I. Case file. Volume XVI. Request to return the motor vehicle of Maria de Jesús Alvarado Espinoza filed with the Official of the Public Ministry attached to the Special Investigation Unit for Missing and Lost Persons, of February 15, 2010, page 84 of the pdf file (Annex to the brief of observations on the merits by the petitioners, received on November 3, 2014). 117 Annex I. Case file. Volume XVI. Resolution to return the motor vehicle by the Attorney General's Office for Justice, Special Investigation Unit for Missing and Lost Persons of February 15, 2010, page 85 of the pdf file (Annex to the brief of observations on the merits by the petitioners, received on November 3, 2014). 118 Annex I. Case file. Volume XVI. Official letter 246/2010 of February 16, 2010, page 89 of the pdf file (Annex to the brief of observations on the merits by the petitioners, received on November 3, 2014). 119 Annex XX. IACHR document requesting provisional measures. Annex 6 - Case file 124/2009 - Official letter 246/2010. Annex XX. Brief of the State sent as part of the MP 10-10 proceedings with the I/A Court H.R. on April 21, 2011; Annex I. Case file. Volume XVI. Official letter from the District Attorney's Office of the Specialized Prosecution Service for Criminal Investigation and Prosecution of February 23, 2011, page 440-442 of the pdf file (Annex to the brief of observations on the merits by the petitioners, received on November 3, 2014). 120 121 Annex I. Case file. Volume XVI. Statement where it is reported that jurisdiction for preliminary inquiry was declined 124/2009, May 28, 2012, page 519 of the pdf file (Annex to the brief of observations on the merits by the petitioners, received on November 3, 2014).