Task: Translation
Input (English): His appeal against conviction was turned down in 2008, with the Court of Appeal saying that the geological evidence he wished to challenge was only one factor of the "strong circumstantial case" proving his guilt.
Output (Japanese): 控訴院は、彼が異議を唱えている地質学的証拠は、彼の有罪を証明する「強い状況証拠」の要因の中のたった一つに過ぎないと述べ、有罪判決に対する彼の上訴は2008年に棄却された。