delivered the opinion of the Court:
Section 15 of the act, approved June 29, 1906, makes it the duty of the United States district attorneys,” “upon affidavit showing good cause therefor,” to institute proceedings for the purpose of setting aside and canceling a certificate of citizenship, on the ground of fraud, or that the certificate had been illegally procured. 34 Stat. at L. 601, chap. 3592, U. S. Comp. Stat. Supp. 1909, p. 485.
This suit is not brought by the Attorney General, or by his direction, and we need not consider whether in such case it could be maintained without the authority of the statute aforesaid.
While there is no specific statute empowering the Attorney General to bring actions and suits in the name of the United States, the power resides in him as the head of the Department of Justice. United States v. San Jacinto Tin Co.
It is a well-established general principle that where a power is exercised under a statute prescribing its course, that course must be followed and the necessary conditions made to appear. Every material requirement of the statute must be complied with. Thatcher v. Powell,
This conclusion makes it unnecessary to consider any other ground of demurrer than the one stated.
Uie petition failing to set forth the condition required by the statute to confer authority to maintain the suit, the demurrer ought to have been sustained.
The decree will be reversed, with direction to sustain the demurrer on the ground stated, and, unless the petition may be amended to show the existence of a proper affidavit at the time it was filed, to dismiss the petition without prejudice.
Reversed.
