We can no longer tolderate what
Commander Vincent has been doing.
To deprive him of his position,
we must obtain conclusive evidence
of his evil doings, and report it to headquarters.

We realized that he is very
intelligent and cautious.
As a last resort, though it was
very dangerous for us, was to wiretap his phone conversations.
Finally, we obtained evidence
that was potent enough to deprive him of his position.