To set a thief to catch a thief, that is what we call " to counteract one toxin with another ".

叫小偷去抓小偷, 这就叫 “ 以毒攻毒 ”.

《现代汉英综合大词典》

The children are playing a game of cops and robbers.

孩子们正在玩警察抓小偷的游戏.

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It's when I'm roamin'around tryin'to catch a shoplifter.

累的时候是在我四处逛悠抓小偷时.

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He shouted at the top of his voice:'stop thief! "

他高声叫道: “ 抓小偷! ”

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I was caught by the police , when I was trying to catch the real thief!

我今天抓小偷时竟被人当成了小偷, 真是窝心!

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