ferreting out

The Maidan people constantly interrupted her speech on the pretext of ferreting out ‘provocateurs’ from the crowd.

In any case, he is very well informed of all that goes on here, and clever at ferreting out new information.

Or, he brightened momently, could he develop other methods of ferreting out information?

One who spends his life ferreting out crime is apt to have the soul of a criminal.

Winter was an adept in ferreting out facts concerning these localities and their denizens.

He had been a very successful officer in ferreting out foreign Anarchists and evil-doers.