I thank the hon. Lady for raising this issue. I am sure that the whole House will want to join me in sending our deepest sympathies and condolences to the families and friends of those affected by that terrible tragedy. I am pleased to say that our health and safety record for mines has improved greatly since 1979. That improvement has resulted from learning from previous incidents such as the Golborne tragedy and preventing as far as possible disasters like it. As the hon. Lady may know, in 2015, following an extensive review, the Mines Regulations 2014 replaced all previous legislation relating to health and safety in underground mines. They provide a comprehensive and simple goal-setting legal framework to ensure that mine operators provide the necessary protection for mine workers and others from what we all accept are inherent hazards in mines. I assure the hon. Lady that we will continue to review safety regulations so that we can make sure that a tragedy like this never happens again.