ฃLaw consists both of a code of laws and processes for applying them and disputing their application. This distinction, between the static or codified, and the dynamic and dialogic aspects of the law is useful, although the two interact, and the boundary is fuzzy (for instance 'precedent' operates as means of converting the outcomes of dynamic legal processes into static bases for interpretation). Law of this kind appears to have developed long before writing as part of the regulatory system of human societies, as can still be seen in the "traditional law" of orate cultures. (There is a substantial anthropological literature.) Religion has also played a role in the development of law - an important predecessor of Common Law courts were the Ecclesiastical courts; for example, Islamic or Shari'ah Law is the basis of many legal systems around the world, although not entirely: Saudi Arabia has non-Islamic traffic courts. There are, in addition, many 'local' legal systems, but these have often blended with two secular legal systems which have evolved into many variants around the world. Roman Law, also known as the Inquisitorial system, developed from ancient Roman law and is found in much of continental Europe, East and South East Asia, Latin America, and parts of Africa and the Middle East. Common Law, also known as the Adversarial system, originated in England and Wales and can be found where English speakers have ruled, including England and Wales, North America, much of Australasia and Oceania, South Asia, Singapore and Malaysia, and parts of Africa and the Middle East.