CAT/C/79/D/1055/2021 that the diagnosis of post-traumatic stress disorder set out in the medical report plausibly establishes that the complainant experienced a traumatic event and that his state of health required medical follow-up. However, it points out that a medical report can attest to the presence of trauma but not to its exact cause. Consequently, it considers that the finding of post-traumatic stress disorder does not constitute proof that the violence alleged by the claimant was perpetrated in the circumstances described. 4.12 The State party refutes the complainant’s argument that the evidence submitted demonstrates his strong political commitment to Mouvement pour la renaissance du Cameroun, within which he served as the head of the local unit in his district. The State party points out that the complainant did not return to his country in September 2018 and that, as a result, his claims to have undertaken political activities, including in 2019, are not plausible. It also points out that these doubts are corroborated, inter alia, by the fact that, during the hearings, the complainant – who claims to have been the head of a local unit of the party in Yaoundé and to have taken part in meetings of the party’s national executive board – was unable to provide information on the party’s senior executives. As for the document signed by the national leader of the party, the State party points out that it is drafted in general terms and does not mention that the complainant was the head of a local unit of the party in Yaoundé. 4.13 As for the complainant’s alleged political activities in Switzerland, in particular his participation in a number of demonstrations in Geneva against the President of his country of origin, the State party requests the Committee to disregard this claim, which was not submitted to the national authorities in advance as part of the asylum proceedings. The State party considers that the complainant’s alleged political activities in Switzerland appear to be limited to his participation in a demonstration, and that he does not substantiate his claim to have worked to rally support for Mouvement pour la renaissance du Cameroun in Switzerland. On the basis of the information in the case file, the State party concludes that the complainant does not have the type of profile that might attract the attention of the authorities in his country of origin. 4.14 The State party notes that an allegation is insufficiently substantiated when, on an essential point, precise and detailed information is lacking, which indicates that the complainant has not experienced the events described. Likewise, an allegation is implausible when, on an essential point, it is contrary to logic or general experience. 4.15 The State party contests the claim that the complainant’s asylum application was not effectively examined. It recalls that the State Secretariat for Migration and the Federal Administrative Court carefully examined the credibility of the complainant’s claims concerning his stay in Cameroon between September 2018 and December 2019, his political activities, and the detentions and ill-treatment to which he was allegedly subjected there. The State party notes that the complainant’s explanations about his alleged return to Cameroon in September 2018 were very vague and evasive. It noted that the complainant claimed that his return ticket had been purchased with his bank card by a friend, but he failed to substantiate this claim or his claims regarding the circumstances of his air travel from Lagos to Doha, and then to Zurich, in November 2019. 4.16 The State party further points out that the complainant claimed to have been involved in political activities for Mouvement pour la renaissance du Cameroun, led by Maurice Kamto, since January 2015. Throughout the hearings, however, he used the acronym RMC to refer to the party, which is known as MRC in French and CRM in English. 14 The State party is surprised that the complainant, who claims to have been very committed to Maurice Kamto’s party and to have headed one of the party’s local units in Yaoundé, was unable to give the correct acronym of the party. It is of the view that, in the present case, the doubts surrounding the complainant’s return to his country of origin were so significant that it was not necessary to verify the authenticity of the documents submitted in support of his allegations by means of a scientific procedure or an on-the-spot check. The State party further notes that the complainant has failed to explain how he came to be in possession of internal documents such as the arrest warrant of 4 December 2019 or the wanted notice of 14 6 See the party’s website at https://mrcparty.net. GE.24-09258