Predominancy of Islamic Law in Muslim Soceity

Allah gave us Holly Koran , before Koran , He granted people other divine books but Jews changed the meanings of the divine words and Glazed. So Allah granted a book to Last Prophet PBUH , after this book all Followers and Muslims in the era of Muhammad PBUH and reign of firs 5 Caliphates (Abu Bakar Sidique RA., Umar R.A, Uthman R.A, Ali A.S, and Hasan bin Ali A.S) were ruled according to law of Koran, after few years all Islamic systems were changed by the cryptic Jews in Islamic Society, even in all Islamic world and in Sub Continent of India Freemasonry introduced Judicially system which was looking much sacred but originally it was very hateful,