Procedural law, as the name implies, talks about the procedure of how the crime is prosecuted. Substantive law has to do with the actual law itself. Certain penalties that may be associated with the crime and what kinds of acts are criminal. The substantive law is impacted, outlined, codified and brought into law by the Florida Legislature. Procedural law is handled through the Florida Supreme Court. The reason why the distinction matters pertains to what agencies can get involved. The Florida Supreme Court cannot make changes to substantive law and the Florida Legislature cannot make changes to procedural law. It also involves certain claims of “ex post facto” rights; a person has been convicted of a crime which that crime has been changed in one way, shape or form. Whether or not it’s been enhanced through substantive changes or procedural changes or perhaps, made less cumbersome or less penalty driven, is a question that start with the question is it a procedural change or substantive change. If it’s a substantive change, the person may have a viable “ex post facto” protection, but if it’s procedural, it becomes much different, and the person probably does not.