Whoever wears the tie clip can find the truth by accessing the memories of the victim via questions (though neither the wearer nor the victim will notice this) giving a boost to confidence in the process. So, it basically allows the wearer to know the answer to a question they're asking someone before the interviewee can respond. The cuff links will reverse the memory loss when the victim looks at them. If not used in time the victim will suffer from continuous massive memory loss until finally their involuntary and autonomous biological functions begin to deteriorate and they forget how to breathe.
Walter Winchell was an American newspaper and radio gossip commentator. He was famous for getting the truth out of people and one of his famous quotes was "I usually get my stuff from people who promised somebody else that they would keep it a secret."