This is funny, read this

This is funny read this   

A lawyer defending a man accused of burglary tried this creative defense: "My client merely inserted his arm into the window and removed a few trifling articles. His arm is not himself, and I fail to see how you can punish the whole individual for an offense committed by his limb." "Well put," the judge replied. "Using your logic, I sentence the defendant's arm to one year's imprisonment. He can accompany it or not, as he chooses." The defendant smiled. With his lawyer's assistance he detached his artificial limb, laid it on the bench, and walked out.

THe lawyer is  "smart", however; the judge  is even "smarter". It is really funny! Thanks, blue Ivy.

there is a chinese set phrase for the defendant: 金蟬脫殼。
the defense method used by the lawyer may be called 兵不厭詐。

How to translate them into English?