[r] Co. Litt. 15 b.
III. The third branch of them are those peculiar laws, which by custom are adopted and used only in certain peculiar courts and jurisdictions. And by these I understand the civil and canon laws.
It may seem a little improper at first view to rank these laws under the head of leges non scriptae, or unwritten laws, seeing they are set forth by authority in their pandects, their codes, and their institutions; their councils, decrees, and decretals; and enforced by an immense number of expositions, decisions, and treatises of the learned in both branches of the law. But I do this, after the example of sir Matthew Hale[], because it is most plain, that it is not on account of their being written laws, that either the canon law, or the civil law, have any obligation within this kingdom; neither do their force and efficacy depend upon their own intrinsic authority; which is the case of our written laws, or acts of parliament. They bind not the subjects of England, because their materials were collected from popes or emperors; were digested by Justinian, or declared to be authentic by Gregory. These considerations give them no authority here: for the legislature of England doth not, nor ever did, recognize any foreign power, as superior or equal to it in this kingdom; or as having the right to give law to any, the meanest, of it's subjects. But all the strength that either the papal or imperial laws have obtained in this realm, or indeed in any other kingdom in Europe, is only because they have been admitted and received by immemorial usage and custom in some particular cases, and some particular courts; and then they form a branch of the leges non scriptae, or customary law: or else, because they are in some other cases introduced by consent of parliament, and then they owe their validity to the leges scriptae, or statute law. This is expressly declared in those remarkable words of the statute 25 Hen. VIII. c. 21. addressed to the king's royal majesty.—"This your grace's realm, recognizing no superior under God but only your grace, hath been and is free from subjection to any man's laws, but only to such as have been devised, made, and ordained within this realm for the wealth of the same; or to such other, as by sufferance of your grace and your progenitors, the people of this your realm, have taken at their free liberty, by their own consent, to be used among them; and have bound themselves by long use and custom to the observance of the same: not as to the observance of the laws of any foreign prince, potentate, or prelate; but as to the customed and antient laws of this realm, originally established as laws of the same, by the said sufferance, consents, and custom; and none otherwise."
[] Hist. C.L. c. 2.
By the civil law, absolutely taken, is generally understood the civil or municipal law of the Roman empire, as comprized in the institutes, the code, and the digest of the emperor Justinian, and the novel constitutions of himself and some of his successors. Of which, as there will frequently be occasion to cite them, by way of illustrating our own laws, it may not be amiss to give a short and general account.
The Roman law (founded first upon the regal constitutions of their antient kings, next upon the twelve tables of the decemviri, then upon the laws or statutes enacted by the senate or people, the edicts of the praetor, and the responsa prudentum or opinions of learned lawyers, and lastly upon the imperial decrees, or constitutions of successive emperors) had grown to so great a bulk, or as Livy expresses it[t], "tam immensus aliarum super alias acervatarum legum cumulus," that they were computed to be many camels' load by an author who preceded Justinian[]. This was in part remedied by the collections of three private lawyers, Gregorius, Hermogenes, and Papirius; and then by the emperor Theodosius the younger, by whose orders a code was compiled, A.D. 438, being a methodical collection of all the imperial constitutions then in force: which Theodosian code was the only book of civil law received as authentic in the western part of Europe till many centuries after; and to this it is probable that the Franks and Goths might frequently pay some regard, in framing legal constitutions for their newly erected kingdoms. For Justinian commanded only in the eastern remains of the empire; and it was under his auspices, that the present body of civil law was compiled and finished by Tribonian and other lawyers, about the year 533.
[t] l. 3. c. 34.
[] Taylor's elements of civil law. 17.
This consists of, 1. The institutes, which contain the elements or first principles of the Roman law, in four books. 2. The digests, or pandects, in fifty books, containing the opinions and writings of eminent lawyers, digested in a systematical method. 3. A new code, or collection of imperial constitutions, the lapse of a whole century having rendered the former code, of Theodosius, imperfect. 4. The novels, or new constitutions, posterior in time to the other books, and amounting to a supplement to the code; containing new decrees of successive emperors, as new questions happened to arise. These form the body of Roman law, or corpus juris civilis, as published about the time of Justinian: which however fell soon into neglect and oblivion, till about the year 1130, when a copy of the digests was found at Amalfi in Italy; which accident, concurring with the policy of the Romish ecclesiastics[w], suddenly gave new vogue and authority to the civil law, introduced it into several nations, and occasioned that mighty inundation of voluminous comments, with which this system of law, more than any other, is now loaded.