Labour leader Ed Miliband has said he wants union members to have an "active choice" over their membership to his party.
He told the BBC's Andrew Marr Show that he wants Labour to establish links to "individual union members".
He added that there needed to be a strong message sent about MPs with possible conflicting business interests.
More top news
Temperatures will remain higher than what is usually expected in the day for December ahead of rain moving in from the west tonight.
Senior NHS emergency medical consultant admits there is "absolutely a winter crisis."
Winner of The X Factor 2014 Ben Haenow is on course for the Christmas No. 1 after increasing the gap over his nearest rival, Mark Ronson.