HMRC’s statutory duty of taxpayer confidentiality prevents it from commenting on the specifics of any case. HMRC do not break costs down by individual investigations. They are funded by Government to investigate serious tax fraud and deploy resources to achieve value for money overall. HMRC closely collaborates with the Environment Agency, relevant local authorities and the Crown Prosecution Service during the course of investigations into landfill tax fraud. To date there has been no prosecution into landfill tax fraud, but over the last five years, HMRC’s civil compliance activity has prevented more than £1billion in incorrect landfill tax repayment claims and it has stepped in to protect £125m of tax that would otherwise have gone unpaid. Since it was set up in 2016, HMRC’s Fraud Investigation Service has secured and protected more than £25bn for our vital public services and has launched over 76,000 civil cases and more than 4,000 criminal investigations, securing 3,700 criminal convictions.