In 1975 Craig criticised the extension of postal votes to people on holiday at the time of elections, arguing that there were "very real dangers in any electoral system which permits extensive voting by post".
When the Home Affairs Select Committee conducted an inquiry into the Representation of the People Acts, Craig (through his company) submitted a memorandum calling for an increased deposit, prohibition of multiple registration, and prevention of candidates changing their names to ones similar to those of other candidates.