This looks like Bill Clinton saying "I did not have sexual relations with that woman"... How to catch a liar when lying? Is relatively simple really. When a liar is exposed the very first thing they do is to deny the actual action that took place. Instead of clarifying situation and/or actions the liar, by own mental lapse defines in precise words what actually took place (vs what is suspected) So when you read, "I did not collude" means "I did collude" or when you hear "there was no collusion" means "there was collusion"