Final answer:
Cesare Beccaria believed that criminal laws should promote the welfare of the people, protect their rights, and focus on rehabilitation.
Step-by-step explanation:
Cesare Beccaria believed that the purpose of criminal laws should be to promote the welfare of the people and protect their rights. He argued that laws should act as a deterrent to crime and should be fair and proportionate in their punishments. Beccaria also emphasized the need for the criminal justice system to focus on rehabilitation rather than harsh and barbarous treatment of offenders.