Reply To: Hilchos Shmiras Haloshon

Even regarding those people about whom one is allowed to say LH, you must be speaking for “toeles”, that is in order to distance people from the evil path when they hear how others debase those who commit sins, and perhaps the person himself will do teshuva when he hears how others debase him him for this.

But the speaker is not allowed to intend to get enjoyment from speaking about the person and he can not be speaking out of hatred but only for the sake of “emes”.

Source: “Sefer Chofetz Chaim” klal 4, seif 7, footnote 32.4