Abstract: Jacques Derrida is among influential Post Structuralist philosophers. Post structuralism is the major subdivision of contemporary western philosophy. This doctrine fundamentally seeks to attain justice (balance) of language and culture as far as acquisition and development in use is concerned. This phenomenon started to be felt in 1970s. Philosophers under this doctrine from time to time raised questions on problems of language and culture, which in turn do not have clear answers. This has given individuals ability to conceptualize the language and culture in a subjective facet. Derrida in his essay “Force of Law, The Mystical Foundation of Authority” addresses the problem of “Deconstruction” as fundamental question regarding the justice and law. Deconstruction is a sub category of Post Structuralism philosophical movement pioneered by Derrida, which attain to critic outlook over the relationship between text and meaning. This paper utilizes documentation as the major source of information. We expound philosophies and there relevance in bestowing knowledge on our societies especially on deconstruction phenomenon. In this work, we discuss the possibility and or limitations of justice and law in the process of reading, interpreting and judging of work/text. The paper concludes that, Philosophy especially Post Structuralism paved a way to humanistic approach, which open our minds to attain new judgments and level of understanding.