Does the applicant have to prove that he is not a credible witness at a second-level refugee tribunal?

Moreover, the applicant has not persuaded me that the panel could not reasonably conclude as it did, since its perception that he was not credible effectively amounted to a finding that there was no credible evidence that could justify the refugee claim in question. In this regard, it suffices to recall what MacGuigan J.A. stated in Sheikh v. Canada, 1990 CanLII 8017 (FCA), [1990] 3 F.C. 238, at page 244: The concept of “credible evidence” is not , of course, the same as that of the credibility of the applicant, but it is obvious that where the only evidence before a tribunal linking the applicant to his claim is that of the applicant himself (in addition, perhaps, to “country reports” from which nothing about the applicant’s claim can be directly deduced), a tribunal’s perception that he is not a credible witness effectively amounts to a finding that there is no credible evidence on which the second‑level tribunal could allow his claim.