30 HASSAN v. THE UNITED KINGDOM – JUDGMENT the Court finds that it is probable that Tarek Hassan was released in or near Umm Qasr on 2 May 2003. 56. The Court is of the view that, in this case, since the evidence concerning Tarek Hassan’s detention and release was, for the most part, accessible only to the Government, the onus is on them to provide a plausible and satisfactory explanation as to what happened to Tarek Hassan in the Camp and to show that he was released and that the release followed a safe procedure (see paragraph 49 above). The computer records show that by 22 May 2003 the United Kingdom had captured and processed some 3,738 detainees in Iraq since the start of hostilities and had released all but 361 (see paragraph 28 above). In the light of the time that had elapsed before the applicant lodged his claim and the large number of United Kingdom detainees that were released from Camp Bucca around the end of April and the beginning of May 2003, it is unsurprising that no eye witness able to remember Tarek Hassan’s release has been traced. In the circumstances of the present case, the Court finds that the evidence referred to above is sufficient to satisfy the burden of proof on the Government. 57. Finally, there is no evidence before the Court to suggest that Tarek Hassan was ill-treated while in detention. The interview records show that he was questioned on two occasions, shortly after having been admitted to the Camp, and found to be a civilian, of no intelligence value and not posing any threat to security. The witness statement submitted by the applicant, of Mr Al-Saadoon, who claimed to have seen Tarek Hassan in the civilian holding area in Camp Bucca in the period after he was questioned and before he was released, makes no mention of any sign of injury on Tarek Hassan or any complaint by him of ill-treatment. Moreover, apart from the applicant’s witness statement, there is no evidence before the Court as to the cause of Tarek Hassan’s death or the presence of marks of ill-treatment on his body, since the death certificate contains no information on either point. Assuming the applicant’s description of his brother’s body to be accurate, the lapse of four months between Tarek Hassan’s release and his death does not support the view that his injuries were caused during his time in detention. 58. Having established the facts of the case, the Court must next examine the applicant’s complaints under the Convention.