First, the weak figures were identified, the investigation to four ways: First class will be weak before the investigation officer.

首先对薄弱人物进行认定，采取四种排查方式：一是班前会薄弱人员排查。

youdao

The officer leading the investigation has been taken off the case.

主持调查此案的警员已被撤下。

《牛津词典》

In Europe the ordeal has already begun: an officer in Britain's MI5 is under police investigation, and prosecutors in Italy, Germany and Spain are looking at cases linked to the CIA's actions.

在欧洲艰苦的考验已经来临：英国一位军情五处MI5的官员正接受警察调查，意大利、德国和西班牙的检察官们正在调查与CIA行动有关的案件。

youdao

Yvonne Stone, senior criminal investigation officer for Birmingham HM Revenue and Customs, for services to prevention of smuggling and asset recovery.

BBC: Adrian Lester

Sgt Martyn Bougourd, a police collision investigation officer, said he calculated that the quad bike had been travelling at 32mph, within the 35mph speed limit for the road.

BBC: Guernsey girl's quad bike death ruled accidental

Even if the PSNI decides to launch a new investigation, one former officer who is familiar with the original RUC investigation says he does not believe there will be convictions unless someone with direct knowledge of the attack comes forward and provides information about who was responsible.

BBC: Enniskillen survivors plea to McGuinness over attack