in march, the chancellor announced he was cutting the tax the government charges on petrol and diesel, fuel duty, by 5p per litre, but there are concerns the saving has not found its way to the forecourts. now ministers have instructed the independent regulator to investigate. we have got to make sure it is being passed on and once we get the review of that, then it will be right to look at what more, if we need to, we can do to help people to make sure it is actually getting to where we want. there are calls for the government to cut fuel duty by more than 5p, as some other european countries have. labour wouldn t confirm if it would do so but said the review was overdue. naming and shaming, which was their previous policy, wasjust never going to work. we need to make sure that we have got a functioning energy market. petrol retailers insist the cut is being reflected in prices at the pump. the regulator says it stands ready to take action if it finds competition is not working proper