“ The general jurisdiction, in time of peace, of the civil courts of a state over persons in the military service of the United States, who are accused of a capital crime or of any offence against the person of a citizen, committed within the state, is, of course, not denied. ”

“ It is an exceedingly delicate jurisdiction given to the Federal courts by which a person under an indictment in a state court, and subject to its laws, may, by the decision of a single judge of the Federal court, upon a writ of habeas corpus, be taken out of the custody of the officers of the state, and finally discharged therefrom, and thus a trial by the state courts of an indictment found under the laws of a state be finally prevented. ”

“ Crowley was a citizen of Pennsylvania, not in the service of the United States, and was killed in or near a street of the city of Pittsburg, and not on property belonging to the United States or over which the United States had jurisdiction.
The homicide occurred within the territorial jurisdiction of the court of oyer and terminer, which, as Judge Acheson observed, was the only civil court which could have jurisdiction to try petitioners for the alleged unlawful killing, and the indictment presented a case cognizable by that court. ”