In the development of modern legal institutions that took place in the 19th century, for the most part jurisdictions codified their private law and criminal law, and reviewed and codified the rules of civil procedure as well. It was through this development that the role of an inquisitorial system became enshrined in most European civilian legal systems. However, there exist significant differences of operating methods and procedures between 18th century courts and 19th-century courts. In particular, limits on the powers of investigators were typically added, as well as increased rights of the defense.