21. Scots law recognises four sources of law : legislation, legal precedent, specific academic writings, and custom. 22. The main source of law is written legislature. 23. Justification for using the Sunnah as a source of law can be found in the Qur'an. 24. With the civil code as the principal source of law , all Shari a courts were abolished. 25. Authorities, or secondary sources of law , include case law ( " jurisprudencia " ) and doctrine. 26. The Quran and Muhammad's example was the main source of law after which the community decided. 27. The customary law of the Duchy of Normandy is particularly influential as a source of law . 28. Also, could anyone recommend a good treatise on the sources of law in common law jurisdictions? 29. In the custom is a source of law . 30. Their sense of grievance lingers in modern Egypt, whose constitution identifies Islam as the source of law .
