Mr Jones said the Welsh Office consultation paper on assembly membership was an attack on democracy. He said that while he accepted there was a need to bar some public sector officers from being candidates, the consultation paper had gone too far.
He said that the paper - as well as disqualifying a number of workers in the public sector from being candidates - also proposed to prevent staff of 14 quangos from seeking to become assembly members.
'All parties have stressed the need to secure the best standard of candidate for the Welsh general election. Through preventing so many individuals from standing in the election, the government is undermining this aim,' he said.
'Those individuals who are elected to the assembly should then have to resign from their public sector post,' he added.