Law Courts 241 complete and unscientific, but alive and growing; not a ready-made system brought in from outside and imposed upon the people, but made by the people adminis- tered by them. The common law has a potent ally of constitutional government. 5. Relations of the State Courts and the Church Courts.— In the later middle ages in all the countries of western Europe, lay jurisdiction was more or less Invaded by that of the church.1 The discussion of the English court system cannot be concluded without notice of the causes and extent of this invasion in England and its bearing upon the effectiveness of the judiciary. In the Anglo-Saxon period, there had no such in- vasion; this was because England was not touched by the increased church unity and influence resulting from the Carolingian patronage and the pretensions of the forged Decretals. Criminous clerks were tried in the popular courts; litigation between clerks and between clerks and laymen and the enforcement of many of the laymen's ecclesiastical obligations found place there also. Only for holding clerks to their clerical duties, did anything in the nature of an ecclesiastical court exist, although there seems to have been an occasional attempt to close civil differences between clerks by extra-judicial arbitration. It has been seen how, by the Conquest* England was brought into the current of continental Influence* and how this immediately showed itself in the church, checked 1" Starting from the words of the apostle against going to law before unbelievers, growing at first as a process of voluntary arbitration within the Church, adding a criminal side with the growth of disciplinary powers over clergy and members, and greatly stimulated and widened by the legislation of the early Christian emperors, a body of law and a judicial organisation had been developed by the Church which rivalled that of the State in its own field and surpassed it in scientific form and content."— Adams, The History of England (1066-1216), pp. 278, 279. It will be use- ful, in this discussion, to keep in mind that the church drew cases to its courts upon two general grounds: something clerical about the parties to a suit, or something clerical about the suit itself. Now clerical persons might do unclerical deeds and unclerical persons could litigate few^causes in which ingenuity might not discover some trace of the clerical. ^ "With this double hold, there was opened up before the church a jurisdictioaal vista practically without end.