One of the most important places among the universally recognized rights is the right to a fair trial. The essence of this right is that any violated right can be restored through a particular procedure. In the absence of an effective method for the protection of rights and interests, the rights and freedoms recognized and enshrined in law are only declarative provisions. Given the significant role of the right to a fair trial and changes in its provision under quarantine restrictions, it is necessary to analyze the content of this right, highlight principal requirements and problematic aspects of implementation given the current conditions of social relations. The purpose of the work is to analyze the content of the right to a fair trial. The subject of the study is the social relations that arise, change, and terminate during the exercise of the right to a fair trial. The research methodology includes such methods as a statistical-mathematical method, method of social-legal experiment, cybernetic method, comparative-legal method, formal-legal method, logical-legal method, and method of alternatives. The study will analyze the content of the right to a fair trial as international law and national law, its impact and interaction with the national legal system of Ukraine, which includes theoretical, applied, and common law aspects and conceptual rethinking in an era of quarantine restrictions.