European Union Referendum Bill

I appreciate that the hon. Gentleman’s argument relates to the complexities of our current system of eligibility to vote in either the potential European referendum or a general election, but may I take up the point made earlier by the right hon. Member for Leicester East (Keith Vaz), who mentioned tax? How long does the hon. Gentleman think the period of contribution should be? Should it be five years or 10 years, or should taxpayers be eligible immediately?