“Our difficulties are not over,” he remarked, shaking his head. “Our police work ends, but our legal work begins.”

“Exactly,” said I. “A plausible lawyer could make it out as an act of self-defence. There may be a hundred crimes in the background, but it is only on this one that they can be tried.”

“Come, come,” said Baynes cheerily, “I think better of the law than that. Self-defence is one thing. To entice a man in cold blood with the object of murdering him is another, whatever danger you may fear from him. No, no, we shall all be justified when we see the tenants of High Gable at the next Guildford Assizes.”