International Court of Justice

Customary international law refers to international obligations arising from established international practices, as opposed to obligations arising from formal written conventions and treaties. Customary inte

• international law
• public international law
• International Court of Justice
• international treaties

Jus cogens, or compelling law, refers to a category of norms that govern customary international law. The Latin term is used interchangeably with the English term “peremptory norm”. 

Jus cogens norms differ from other norms in two key respects. 

• international law
• International Court of Justice
• Vienna Convention
• international treaties
• TREATIES

• federalism
• separation of powers
• international law
• Vienna Convention on Consular Relations
• International Court of Justice
• Avena

Oral argument: Oct. 10, 2007

Appealed from: Texas Court of Criminal Appeals (Nov. 15, 2006)