Is it better for common law to define crime or the legislature to define crime? How does each affect the society and community?

Rulings in a common law system depend on the prior decisions of the court on similar cases. Statutory laws are the rule and regulations prescribed as per the constitution.

Explanation:

Common laws are the decisions which are often taken by the panel of judges based on the similar case hearings which have already happened. If the feature of the case is similar, Judge decides upon the final ruling by referring to the previous case sheets and final verdict is given. It may take time to influence the common man with knowledge about it.

Statutory laws are the mandates and ordinances that are developed and enacted. It is voted by the representatives after a long deliberation on it. once the laws are passed, the governmental agencies like courts adopts it. In United States both common laws and statutory law systems are applied.