3XEOLFDWLRQRI&37YLVLWUHSRUWV In their response, the Lithuanian authorities refer in particular to legal obstacles to increasing the duration of out-of-cell education for juvenile remand prisoners. In order to improve the situation, a working group had been set up at local level with the task of preparing an education plan for approval by the Minister of Education and Science. 39. As regards the alleged existence some years ago on Lithuanian territory of secret detention facilities operated by the Central Intelligence Agency (CIA) of the United States of America, the CPT’s delegation visited the two facilities (Projects Nos. 1 and 2) that had been identified in the report on this matter drawn up by the National Security and Defence Committee of the Lithuanian Parliament. When seen by the delegation, the premises concerned did not contain anything that was highly suggestive of a context of detention; at the same time, both of the facilities could be adapted for detention purposes with relatively little effort. The central issue for the CPT’s delegation was the effectiveness of the pre-trial investigation into this matter that had been launched on 22 January 2010. During discussions with members of the Prosecutor General’s Office, the delegation questioned the limited scope of the investigation, which related to a possible abuse of official position and did not expressly cover the possible unlawful detention of persons (and their possible ill-treatment) on Lithuanian territory. The delegation also sought to ascertain the precise steps that had been taken as from the opening of the investigation. However, the delegation was not provided with the specific information it requested, on the grounds that the major part of the data gathered during the investigation constituted a State or service secret. The CPT concluded in its report that given the paucity of the information available, it remained an open question whether the pre-trial investigation met the criterion of thoroughness. In their response, the Lithuanian authorities reiterate that most data received during the pre-trial investigation are classified as a State or official secret and can therefore not be rendered public. They indicate that “the arrival and departure of U.S. CIA-related aircraft to/from Lithuania was established”, but that there was no evidence of illegal transportation of any persons by those aircraft. Further, while stating that the real purpose of the premises of Projects Nos. 1 and 2, which were jointly set up by the State Security Department of Lithuania and the CIA, cannot be disclosed as it constitutes a State secret, the Lithuanian authorities affirm that no evidence has been found of any detention or abuse of a person on the premises concerned. For that reason, all related pre-trial investigations had been discontinued. Report and response published in May 2011, CPT/Inf (2011) 17 and CPT/Inf (2011) 18