asked Her Majesty's Government:What proportion of Metropolitan Police costs at Heathrow was borne by the Aviation Security Fund in 1978–79 and 1979–80, and what proportion is estimated for 1980–81.

The British Airports Authority are charged by the Metropolitan Police the additional costs falling to them as a result of the designation of Heathrow under the Policing of Airports Act 1974. Fifty per cent. of uniformed branch costs and 12½ per cent. of CID costs were reimbursed from the Aviation Security Fund in 1978–79 and 1979–80, and it is expected that the same percentages will apply in 1980–81.