“Now, for the purpose of keeping the records straight, let’s refer to that as the Trent bullet. And, since it is claimed that that bullet was fired from a revolver found in the drawer of a desk in Trent’s office, we’ll refer to that gun as the Trent gun. Do you understand, Sergeant?”

“Certainly.”

“All right. Now what did you do with the Trent bullet?”

“I put that in my right-hand vest pocket.”

“Then what did you do?”

“Then I went at once to the ballistics department, where I had Mr. Hogan fire test shells from the gun.”

“How did it happen,” Mason asked affably, “that you got those bullets confused?”

“That I got what? ” Sergeant Holcomb roared, half rising from the witness chair. “I didn’t confuse any bullets.”

“I thought you did,” Mason said. “Didn’t you hand Hogan the Trent bullet to check with the Breel revolver?”

“I did no such thing.”