Is it illegal to tap a telephone for the purpose of secretly recording a conversation?
为了秘密地录下谈话,在电话内装置窃听器是违法的行为吗?
At this, the police pointed out ironically that this would hardly be necessary as the men were already under arrest.
警察听后讥讽地说,这大可不必,因为他俩已被逮捕了。