sixty-two years, by no means implies such incapacity. It may be based upon wounds received in battle, but the person retired for this cause may, for many purposes, be a very useful officer.” After reciting certain other provisions of the statutes under which such retired officers are permitted to wear uniforms and may be required to perform special service or return to active duty, and in which they are spoken of as officers of the army on the retired list, Mr. Justice Miller continued: “It is impossible to hold that men who are by statute declared to be a part of the army, who may wear its uniform, whose names shall be borne upon its register, who may be assigned by their superior officers to specified duties by detail as other officers are, who are subject to the rules and articles of war, and may be tried, not by a jury, as other citizens are, but by a military court-martial, for any breach of those rules, and who may finally be dismissed on such trial from the service in disgrace, are still not in the military service.
“If Congress chose to provide for their qualified relief Erom active duty, and for a diminished compensation, it did not discharge them from their other obligations as part of the army of the United States. And if, because they were not required to do full service thereafter, their compensation was diminished by the statute twenty-five per cent, that is no reason why the accounting officers should add a further limitation of pay not found in any statute.
“We are of opinion that retired officers are in the military service of the government, and that the increased pay of ten per cent for each five years’ service applies to the years so passed in the service after retirement as well as before.” (United States v. Tyler, 105 U. S. 244, [26 L. Ed. 985, see, also, Rose’s U. S. Notes].)
In the O’Dea case it was held that the right to a pension entered into the contract of the employment of a policeman. The charter provides that the “Police Department shall consist of a Board of Police Commissioners, a Chief of Police, a Police Force and of such clerks and employees as shall he necessary to carry into effect the provisions of this' Article.” (Charter, art. VIII, e. 1, saec. 1.) Section 2 of the same chapter provides that “All members of the Police Department shall hold office during good behavior, subject to the provisions hereinafter set forth relating to promotions,