Britain makes £10 billion a year thanks to drug dealers and prostitutes, the government's statistics watchdog is set to confirm.
The Office for National Statistics is expected to comply with new EU rules by revealing its first estimates for the size of the illegal industries and how it has reached these calculations.
Prostitution in Britain is set to be valued at around £3 billion a year while the drug dealing sector is set to be valued at £7 billion, with both of them factored into the UK's £1.6 trillion gross domestic product.
Other states have been asked to include the sectors in their national accounts given that prostitution and the consumption of drugs are legal in countries like the Netherlands.
The EU ruling has provoked fierce criticism. Mark Garnier, Tory member of the Treasury select committee, said: “In effect, governments are being asked to quantify the size of their failure.”