What is the in camera procedure for in-camera testimony in a civil case?

The in camera procedure provides an equally-acceptable accommodation of the competing interests of the Government and the accused in the situation presented here, wherein the question is whether a law enforcement officer has lied. Through disclosure of the informer's identity to the trial judge, and such subsequent inquiries by the judge as may be necessary, the Government can be protected from any significant, unnecessary impairment of necessary secrecy, yet the defendant can be saved from what could be serious police misconduct.

Kiser, 716 F.2d at 1273 (quoting United States v. Moore, 522 F.2d 1068, 1072-73 (9th Cir.1975)).