Although the cases in England against officers of the crown were generally at law, there can be no reasonable doubt that the Court of Chancery, at the time when our Constitution was adopted, had full power, by means of the writ of injunction, to restrain an officer of the crown from violating the law where the remedy at law in a suit for damages or for possession of property, real or personal, would have been wholly inadequate and ineffective. The great state trial, known as the case of the Bankers,[37] in which Lord Somers was overruled by the House of Lords, left no doubt as to the principle and the jurisdiction of the courts in suits against crown officers. As Professor Goodnow has shown in his work on "Comparative Administrative Law," the English courts had long been accustomed in one way or another to control servants of the crown and executive officers of the government and to compel them to obey the law. All the great writs, which were at first prerogative writs, had been originally issued to control administrative or judicial officers. Such was the original function of mandamus, habeas corpus, quo warranto, prohibition. Injunctions, it is true, seem rarely to have been made use of in England as a means of preventing administrative action, and only a few cases can be found where they were so used, but, on settled principles, any administrative or executive officer threatening to do an illegal act which would injure the individual in his property rights was amenable to the jurisdiction of courts of equity in controversies requiring their intervention. It is also true that no cases are to be found in England where officers have been held responsible in damages for enforcing an act of parliament or have been restrained from carrying its provisions into effect, but this, of course, is the result of the legislative sovereignty of parliament and of the fact that there are no constitutional limitations imposed upon it. Nevertheless, the same principles which make government officers in England subject to the ordinary law and the ordinary courts for any illegal act done or threatened would clearly authorize the issuance of injunctions restraining the enforcement of an unconstitutional statute if there were any constitutional limitations upon the legislative power of the English parliament. Thus, for example, a colonial statute, or a municipal or administrative rule, by-law, or ordinance in conflict with an act of parliament would be illegal and void, and, within settled principles, its enforcement could be restrained if other grounds of equity jurisdiction existed.