While Cambridge doesn't offer a standalone undergraduate degree specifically titled "International Criminal Law," you can certainly study aspects of it as part of a broader law degree (LLB). The curriculum will allow you to specialize in international law, including modules focused on international criminal justice, international human rights law, and related areas. You would build your expertise in this field through careful course selection.
For postgraduate study, Cambridge offers various LLMs (Master of Laws) and PhD programs where you can focus your research and coursework heavily on international criminal law. You'll find relevant specializations within their wider offerings in law. You would need to check the specific course descriptions available on the Cambridge University Law Faculty website for the most up-to-date information on program offerings.