In terms of the identity of civilian agents who we use.... And it's not so much the identity of civilian agents. It's well established that the accused has to face his accuser to be able to make full answer in defence. This is something that we expect, something the civilian agent expects: to be able to show up in court and testify. This is why we have the witness protection program.
The question we have more of a concern with is the publication of techniques that we use in the undercover operation; that would be more of a concern for us, and the courts not being as willing to hear that type of information in camera, if you will, or not suppress any publication of the technique that was used.