How does the principle of proportionality influence sentencing decisions in international criminal law?

In international criminal law, the principle of proportionality plays a crucial role in determining appropriate sentences for individuals convicted of crimes such as genocide, war crimes, and crimes against humanity. This principle seeks to ensure that the severity of the sentence corresponds to the seriousness of the crime and the culpability of the offender. As international tribunals and courts strive to balance justice with the need for reconciliation in post-conflict societies, the application of proportionality becomes complex. Factors like the scale of the crime, the role of the accused, and the impact on victims are weighed in making sentencing decisions. This raises intriguing questions about how consistent application of proportionality is across different cases and what guidelines exist to aid judges in these decisions.