Questão jurídica principal
Whether the refusal to order a credibility expert violated the right to be heard.
Decisão extraída
The refusal was constitutional because the appellate court could, without arbitrariness, assess the complainant's credibility itself and no special psychological need for expert evidence was shown.
Fundamentação extraída
A credibility assessment is only needed when special circumstances require expert knowledge; the lower court had already given detailed reasons, relied on corroborating physical evidence, and found no signs of impaired perception, memory, or ability to testify truthfully.