Labour MSP urged to resign after taking part in Unite demonstration outside Grangemouth boss' house The group was reported to police but dispersed before officers arrived and no action has been taken. Eric Joyce, the disgraced former Labour MP for Falkirk, said the image of a Labour shadow cabinet member smiling as he took part in the action was "nauseating" and called on him to resign. According to the Sunday Herald, other Labour figures in the photograph with Mr Smith, the party's constitution spokesman, include Helen Stephen, his parliamentary assistant, and Michael Sharpe, son of the Labour MP Cathy Jamieson, who is part of the shadow chancellor Ed Balls's Treasury team. A source close to the MSP said he and his aides were campaigning in the Dunfermline by-election, saw the Unite demonstration and spoke to the protestors briefly. But Grant Shapps, chairman of the Conservative Party, said it was shocking that senior Labour figures were involved in the "intimidation" of innocent families, and said Ed Miliband could not ignore the latest revelation. He added: "He should take swift action against those involved and refuse to accept any more money from the Unite union until they abandon their thuggish "leverage" strategy. Further inaction will once again prove that Ed Miliband is too weak to take difficult decisions, too weak to stand up to his union paymasters and too weak to stand up for hardworking people. The leverage tactics used in the Grangemouth dispute by Labour's biggest donor have been condemned by the Conservatives and led to David Cameron ordering a review of the practice. Meanwhile, the Falkirk Labour Party yesterday elected a new chairman, Gray Allan, a librarian and Unison official, to take over from Mr Deans who resigned from the post, and from his job in Grangemouth, amid allegations of vote rigging in Falkirk. Mr Allan, who has called on the Labour hierarchy to publish its report into the Falkirk affair - which cleared the union of any wrong doing - said he hoped his appointment would start to heal the local party. Unite was accused of signing up new members to the party without their knowledge in a bid to ensure its favoured candidate was selected. The new candidate will be selected on December 8.