Hi everyone. Can someone use a smartphone to record an in-person conversation without the other party being aware that their voice is being recorded, and use the materials of this recording as evisence? If it's not lawful then what are the possible exceptions? I know someone who explicitly admits that they have done too many acts of falsification and dishonesty and say I can't get caught because I will simply deny it due to the lack of solid evidences. I thought using this method to turn them in.