police用在句子中时前面要加the吗

前面可以加冠词the，也可以不加，例如：

1、Several newspapers made allegations of corruption in the city's police department.有几家报纸声称该市警察部门腐败。

2、The full state and police machinery ground into action.全州所有机构和警察部门已经开始行动了。

3、The police force should be independent of direct government control.警方应该不受政府的直接控制。