What is procedural law concerned with?

Procedural law is fundamentally focused on the methods and processes used to enforce and apply substantive law, which encompasses the rights and duties established by law. This includes the procedures by which legal rights are protected, such as the steps involved in filing a lawsuit, the process for conducting trials, and the rules governing evidence. The correct answer reflects this concept, illustrating that procedural law provides the framework and methodologies that allow individuals and entities to exercise their substantive rights effectively within the legal system.

The other options refer to different aspects of law. For instance, defining crimes and their elements is part of substantive criminal law, which lays out what constitutes a crime. Creating new legal statutes is a legislative activity, while investigating criminal behavior pertains to the enforcement of the law rather than the procedural aspects of how cases are brought before a court. These distinctions highlight the specific role of procedural law within the broader legal framework.