Generally speaking the appellate court examines the record of evidence presented in the trial court and the law that the lower court applied and decides whether that decision was legally sound or not.
dʒˈɛnɚɹəli spˈiːkɪŋ ðɪ ɐpˈɛlət kˈoːɹt ɛɡzˈæmɪnz ðə ɹˈɛkɚd ʌv ˈɛvɪdəns pɹɪzˈɛntᵻd ɪnðə tɹˈaɪəl kˈoːɹt ænd ðə lˈɔː ðætðə lˈoʊɚ kˈoːɹt ɐplˈaɪd ænd dᵻsˈaɪdz wˈɛðɚ ðæt dᵻsˈɪʒən wʌz lˈiːɡəli sˈaʊnd ɔːɹ nˈɑːt.