The paper discusses the legal implications and challenges regarding metaverse-based trials that have been tested in countries such as Colombia and China. These trials demonstrate the potential transformation of judicial proceedings, but also raise various challenges, including reliance on technology developers and service providers for due process and challenges to traditional courtroom procedures. This paper analyzes these opportunities and challenges through a comparative legal perspective, and highlights regulatory suggestions for responsibly adopting such technology in trials. By addressing three perspectives (technological, legal, and ethical considerations), the paper aims to examine how Cybernetic Avatars (CAs) may be integrated into legal procedures while ensuring technological, legal, and ethical considerations are met.