informant

The FBI said it became aware of the activity through social media and also relied on an informant to collect information from within the group.

She needs to make sure the informant is alive, but he needs him dead.

In April of this year, the FBI tried to recruit a member of the Guantanamo defense team as an informant.

Agents contrived for one paid federal informant and then another to introduce themselves into his life.

Instead, he was offered a deal: permission to stay, if he became an informant.

They want the benefits of being an informant and the income from doing something illegal.

When Aunt Ri heard that Farrar had fled the country, she pushed up her spectacles and looked reflectively at her informant.

He denied it at once, wanted to know the name of her informant, and finally laughed the whole matter out of her mind.

To himself, he could give no reason for establishing the identity of the smoking-compartment informant.

From any other informant I would not have accepted this statement as probable, still less as true.

So far as I could learn from my informant, the case was one of flagrant persecution, with no culpable occasion behind it.