2. customary is a map of people in society to accept and abide as long time. Each society there are also customary that vary according to the environment, religion, ethnicity, etc., as well as unethical actions that violate the customary. People in the community would be seen as something that is incorrect, offensive actions. It is used as the Foundation for the provision of the law because it is something that people in the social acceptance of. An important example is the law in the uk. The judge will take into consideration customary judgment, which judgment is law. Most other countries, it is customary to use as the Foundation for the law of the country's laws, such as laws such as Thai in the matter of engagement. Splitting heirs