The right to free elections is absolute. This means it must never be restricted in any way.

However, the government can put some limits on the way elections are held. It can also decide what kind of electoral system to have – such as ‘first past the post’, as in UK general elections, or proportional representation.

Prisoners serving a custodial sentence in the UK do not have the right to vote. The European Court of Human Rights has ruled that a blanket ban on all serving prisoners is not compatible with Article 3 of Protocol 1, but that countries should have wide discretion on this matter and that prisoners denied the vote are not entitled to compensation.

These judgments do not directly affect UK law: Parliament would still have to decide whether and how to change the legislation on prisoner voting. A draft Bill was published in 2012 which gave three options: a ban for prisoners sentenced to four years or more; a ban for prisoners sentenced to more than six months; and continuation of the blanket ban. However, Parliament has not voted on the draft Bill and the Government has not announced any other plans to change the legislation covering the ban.