A high-profile barrister backed plans to make it a criminal offence for Senedd members and candidates to deliberately deceive the public.
Sam Fowles, of Cornerstone Barristers, gave evidence on former Plaid Cymru leader Adam Price’s proposals to disqualify politicians from the Senedd for deliberate lying.
The lawyer was involved in the Miller case against the then-Prime Minister over the propagation of the UK parliament and appeals that exposed the Horizon Post Office scandal.
Mick Antoniw, the Welsh Government’s counsel general or chief legal adviser, last week raised concerns the deception proposals are “unworkable”.
But Dr Fowles told members of the Senedd’s standards committee: “I would be very, very confident if I was asked to defend this in a judicial review.”