I've long thought we need to change the system to curb lying in politics, but not by simply criminalising it. I think we need a process where formal accusations of lying or misconduct put a politician in front of a demographically representative audience of 100 of their constituents, who get to hear the case for/against & ask questions, deliberate like a peoples' assembly, then vote, and if the audience finds them guilty, trigger a by-election. They could stand again, but people would know why.