Topic: "There is no hierarchy of sources in international law." Discuss. 3500 words || oscola reference Notes: add references to international court of justice and also include case law at

least minimum of 6 case laws Helpful material/reference: Article 38(1) lays out a number of key points, foremost being that the ICJ's function is to decide in accordance with international law'; 11 it enumerates the following sources as being applicable: international treaties (conventions), whether general (multilateral) or particular (between a smaller group of States), so long as they establish recognizable rules; international custom, 'as evidence of a general practice accepted as law'; general principles of law 'recognized by civilized nations'; 's subsidiary means for the determination of rules of law', naming expressly judicial decisions and the ‘teachings of the most highly qualified publicists of the various nations'. Nonetheless it can be argued that although numerically treaties come first they often cannot be passed or respected if they do not align with customary laws, peremptory norms and general principles of law which help recognize and validate the treaties. This is the rule of jus cogens (Site the supreme court case of shaw v united states 2016) Any treaty provision which conflicts with a rule of jus cogens is void. This is true regardless of whether the rule jus cogens developed before or after the treaty came into force