I would never act as an informer against you.

我永远也不会做对你不利的告密者。

youdao

One businessman says it happened because the man was an informer.

一个商人表示，之所以发生此事是因为这名男子是一个告密者。

youdao

Personally, I would like to become an Informer, but at the moment I am definitely a Meformer.

我本人是想做一个信息分享者的，但是与此同时我又是一个绝对的自我信息者。

youdao

He denied allegations that the police were protecting Mr Breen because he was an informer.

BBC: Constable Stephen Carroll

Once an informer for the CIA, Noriega was arrested by US troops after their invasion of Panama in 1989.

BBC: Panama's Manuel Noriega convicted by French court

An informer whose evidence put dozens of alleged republican paramilitaries before the courts has returned to his home city of Londonderry.

BBC: IRA 'supergrass' Raymond Gilmour returns to Londonderry