Millionaire ministers said yesterday that they may curtail trade union rights even further after Grangemouth bosses took offence at "unpleasant" protests against job cuts last month.

Union officials slammed the government after the Con-Dem coalition announced a review into activists' tactics.

Cabinet Office Minister Maude said he had asked barrister Bruce Carr to look into the Unite union's "leverage" strategy, which saw protests at billionaire Ineos boss Jim Ratcliffe's Limewood Hotel and the Lymington Town sailing club where Mr Ratcliffe - owner of the £130 million Hampshire II superyacht - is a member.