University of Tehran Public Law Studies Quarterly 2423-8120 54 1 2024 03 20 Application of General Principles of Law in International Criminal Law with Emphasis on the Jurisprudence of the International Tribunal for the Former Yugoslavia (ICTY) Application of General Principles of Law in International Criminal Law with Emphasis on the Jurisprudence of the International Tribunal for the Former Yugoslavia (ICTY) 25 47 96533 10.22059/jplsq.2021.331602.2905 FA Narges Sharifi Ph.D. Student in International Law, Islamic Azad University, Karaj Branch, Karaj, Iran Fatemeh Keyhanlou Assistant Prof. Faculty of Law and Political Sciences, Islamic Azad University, Karaj Branch, Karaj, Iran Journal Article 2021 10 01 Despite the specific reference in the Statute of the International Court of Justice to general principles of law as a source, they are seen as  inherently a subsidiary source. Subsidiarity means that if there are no applicable treaty or customary rule, these principles prevail. The ICTY has often used article-38 sources, namely international treaties, custom, and general principles of law, to identify the applicable law in its cases. This paper  uses a descriptive-analytical method to study the jurisprudence of the ICTY, to explain the application of general principles of law in international criminal law. The findings of this paper show that the the ICTY chambers have resorted to general principles of law to fill legal gaps, interpret ambiguous legal rules, and strengthen legal reasoning in their decisions. The Tribunal's frequent referral to general principles of law to fill legal gaps may be due to the fact that international criminal law is a relatively new field and therefore not significantly developed. Thus, general principles of law have played a significant role in filling the gaps in international criminal law. Despite the specific reference in the Statute of the International Court of Justice to general principles of law as a source, they are seen as  inherently a subsidiary source. Subsidiarity means that if there are no applicable treaty or customary rule, these principles prevail. The ICTY has often used article-38 sources, namely international treaties, custom, and general principles of law, to identify the applicable law in its cases. This paper  uses a descriptive-analytical method to study the jurisprudence of the ICTY, to explain the application of general principles of law in international criminal law. The findings of this paper show that the the ICTY chambers have resorted to general principles of law to fill legal gaps, interpret ambiguous legal rules, and strengthen legal reasoning in their decisions. The Tribunal's frequent referral to general principles of law to fill legal gaps may be due to the fact that international criminal law is a relatively new field and therefore not significantly developed. Thus, general principles of law have played a significant role in filling the gaps in international criminal law. https://jplsq.ut.ac.ir/article_96533_70d408e31905771bfbb1152f2dcd5a73.pdf