In some cases, an appellant may successfully argue that the law under which the lower decision was rendered was unconstitutional or otherwise invalid, or may convince the higher court to order a new trial on the basis that evidence earlier sought was concealed or only recently discovered.
ɪn sˌʌm kˈeɪsᵻz, ɐn ɐpˈɛlənt mˈeɪ səksˈɛsfəli ˈɑːɹɡjuː ðætðə lˈɔː ˌʌndɚ wˌɪtʃ ðə lˈoʊɚ dᵻsˈɪʒən wʌz ɹˈɛndɚd wʌz ʌŋkˌɑːnstɪtˈuːʃənəl ɔːɹ ˈʌðɚwˌaɪz ɪnvˈælɪd, ɔːɹ mˈeɪ kənvˈɪns ðə hˈaɪɚ kˈoːɹt tʊ ˈɔːɹdɚɹ ɐ nˈuː tɹˈaɪəl ɔnðə bˈeɪsɪs ðæt ˈɛvɪdəns ˈɜːlɪɚ sˈɔːt wʌz kənsˈiːld ɔːɹ ˈoʊnli ɹˈiːsəntli dɪskˈʌvɚd.