police是集体名词，当主语时，根据情况，谓语可以是单数，也可以是复数，取决于说话者的意思。1.如果指的是整体，用单数；2.如果指的是个体，用复数。
双语例句1、The police force should be independent of direct government control.
警方应该不受政府的直接控制。
2、The relationship between the police and the local community has improved.
警察和当地民众之间的关系已经得到改善。
3、The local police found her story didn't check out.
当地警方证实她的说法不成立。
4、It is the business of the police to protect the community.
警察的职责是保护社会。
5、Get out of the house or I'll call the police.
滚出这所房子，不然我就叫警察了。
