Journal Critical Legal System (JCLS) is a peer-reviewed scientific journal dedicated to advancing critical thought in legal science by adopting the Critical Legal Studies (CLS) approach. It is founded on the theories of Lawrence M. Friedman, a prominent American legal scholar and sociologist renowned for his framework of the three components of the legal system: structure, substance, and legal culture.

The journal is published three times a year, in April, August, and December. It aims to dissect, critique, and reconstruct the legal system as a socio-political institution that is not neutral, but rather imbued with power relations, ideology, inequalities of class, gender, race/ethnicity, and economy, as well as cultural hegemony.

The journal invites articles that sharply question the assumptions of legal formalism, legal positivism, and liberal legalism that have long dominated mainstream legal discourse. We encourage interdisciplinary approaches that integrate legal science with social theory, political philosophy, sociology of law, political economy, post-colonial studies, feminist jurisprudence, critical race theory, queer legal theory, and other legal humanities approaches. It is expected that this journal will serve as a significant scholarly contribution to the field of law.