7. WHERE the common law and a statute differ, the common law gives place to the statute; and an old statute gives place to a new one. And this upon the general principle laid down in the last section, that "_leges posteriores priores contrarias abrogant_." But this is to be understood, only when the latter statute is couched in negative terms, or by it's matter necessarily implies a negative. As if a former act says, that a juror upon such a trial shall have twenty pounds a year; and a new statute comes and says, he shall have twenty marks: here the latter statute, though it does not express, yet necessarily implies a negative, and virtually repeals the former. For if twenty marks be made qualification sufficient, the former statute which requires twenty pounds is at an end[l]. But if both acts be merely affirmative, and the substance such that both may stand together, here the latter does not repeal the former, but they shall both have a concurrent efficacy. If by a former law an offence be indictable at the quarter sessions, and a latter law makes the same offence indictable at the assises; here the jurisdiction of the sessions is not taken away, but both have a concurrent jurisdiction, and the offender may be prosecuted at either; unless the new statute subjoins express negative words, as, that the offence shall be indictable at the assises, _and not elsewhere_[m]. [Footnote l: Jenk. Cent. 2. 73.] [Footnote m: 11 Rep. 63.] 8. IF a statute, that repeals another, is itself repealed afterwards, the first statute is hereby revived, without any formal words for that purpose. So when the statutes of 26 and 35 Hen. VIII, declaring the king to be the supreme head of the church, were repealed by a statute 1 & 2 Ph. and Mary, and this latter statute was afterwards repealed by an act of 1 Eliz. there needed not any express words of revival in queen Elizabeth's statute, but these acts of king Henry were impliedly and virtually revived[n]. [Footnote n: 4 Inst. 325.] 9. ACTS of parliament derogatory from the power of subsequent parliaments bind not. So the statute 11 Hen. VII. c. 1. which directs, that no person for assisting a king _de facto_ shall be attainted of treason by act of parliament or otherwise, is held to be good only as to common prosecutions for high treason; but will not restrain or clog any parliamentary attainder[o]. Because the legislature, being in truth the sovereign power, is always of equal, always of absolute authority: it acknowleges no superior upon earth, which the prior legislature must have been, if it's ordinances could bind the present parliament. And upon the same principle Cicero, in his letters to Atticus, treats with a proper contempt these restraining clauses which endeavour to tie up the hands of succeeding legislatures. "When you repeal the law itself, says he, you at the same time repeal the prohibitory clause, which guards against such repeal[p]." [Footnote o: 4 Inst. 43.]