This paper seeks to map out the problems imposed by the introduction of artificial intelligence (AI) regarding the judicial system. In the era of digitalisation, we are only a step from using AI in our daily work. For this purpose, we carried out a multidisciplinary research related to the possible application of AI in the judiciary worldwide. Our main objective was not only to show that AI requires a different approach both from legislative and executive aspects, but also to offer possible solutions concerning the implementation of AI in the judicial sector. We analysed several aspects of the right to a fair trial with regard to the changes imposed by AI systems. Likewise, we covered the emerging ethical concerns and tackled the issue of transparency, responsibility and non-discrimination. The analysis gradually verified the initial hypothesis of our paper that in spite of the increasing ubiquity of AI, we have to limit its use and adjust both our legal and ethical framework to address these new concerns.