I want to know the answer to the following question:
Signatories to the CPPC are required to prevent and punish what?
All the background I'm provided with is that "Despite official protests from other signatories (notably Cyprus and Norway) on the ethics and legal standing of these reservations, the immunity from prosecution they grant has been invoked from time to time, as when the United States refused to allow a charge of genocide brought against it by former Yugoslavia following the 1999 Kosovo War.". Is that enough to answer the question?