the police will have the difficult time as usual还是than usual

1 as usual 像往常一样,照例
As usual, there weren't many people at the meeting.
像往常一样,来开会的人不多.
Needless to say, he came late as usual.
不用说他照例来得很晚


2 than usual比平常如何如何 (比较级中运用)
e.g. 他比平常起的早. He gets up earlier than usual

觉得可以请给“满意”!