前面可以加冠詞the，也可以不加，例如：
1、Several newspapers made allegations of corruption in the city's police department.有幾家報紙聲稱該市警察部門腐敗。
2、The full state and police machinery ground into action.全州所有機構和警察部門已經開始行動了。
3、The police force should be independent of direct government control.警方應該不受政府的直接控制。
