The draft bill is understood to refer not just to prisoners' votingrights in general and local elections in the UK but also to elections to the European Parliament.
The draft bill that Chris Grayling will publish this week will refer not just to prisoners' votingrights relating to domestic general and local elections.
Following the European Court of Human Rights' ruling that the current blanket ban on prisoners voting in UK elections is illegal, a draft bill to remedy the situation is due to be considered by a joint committee of MPs and peers.