“It was the prisoner, Arthur Channing, who fetched the bank-note from your private room to the other? Did he see you put it into the letter?”

“I cannot say.”

A halt. “But he was in full possession of his eyes just then?”

“No doubt he was.”

“Then what should hinder his seeing you put the note into the letter?”

“I will not swear that I put the note into the letter.”

The magistrates pricked up their ears. Mr. Butterby pricked up his, and looked at the witness.

“What do you say?”

“I will not swear that I put the bank-note inside the letter,” deliberately repeated Mr. Galloway.

“Not swear that you put the bank-note into the letter? What is it that you mean?”