Trade and other debtors Trade and other debtors are recognised initially at transaction price (including transaction costs) unless a financing arrangement exists in which case they are measured at the present value of future receipts discounted at a market rate. Subsequently these are measured at amortised cost less any provision for impairment. A provision for impairment of trade debtors is established when there is objective evidence that the company will not be able to collect all amounts due according to the original terms of receivables. The amount of the provision is the difference between the asset’s carrying amount and the present value of estimated future cash flows, discounted at the effective interest rate. All movements in the level of the provision required are recognised in the profit and loss. Cash and cash equivalents Cash and cash equivalents comprise cash at bank and in hand, demand deposits with banks and other short-term highly liquid investments with original maturities of three months or less. Borrowing costs Borrowing costs relating to the acquisition of assets are capitalised at the appropriate rate by adding them to the cost of assets being acquired. Investment income earned on the temporary investment of specific borrowings pending their expenditure on the assets is deducted from the borrowing costs eligible for capitalisation. All other borrowing costs are recognised in profit or loss in the period in which they are incurred. Trade and other creditors Trade and other creditors are classified as current liabilities if payment is due within one year or less. If not, they are presented as non-current liabilities. Trade payables are recognised initially at the transaction price and subsequently measured at amortised cost using the effective interest method. Employee benefits The company operates a defined contribution pension scheme. The assets of the scheme are held separately from those of the company in an independently administered fund. The company also operates a defined benefit pension scheme for its employees providing benefits based on final pensionable pay. The assets of this scheme are also held separately from those of the company, being invested with pension fund managers. Taxation and deferred taxation Current tax represents the amount expected to be paid or recovered in respect of taxable profits for the financial year and is calculated using the tax rates and laws that have been enacted or substantially enacted at the Balance Sheet date. Deferred tax is recognised in respect of all timing differences that have originated but not reversed at the balance sheet date where transactions or events have occurred at that date that will result in an obligation to pay more tax in the future, or a right to pay less tax in the future. Timing differences are temporary differences between the company's taxable profits and its results as stated in the financial statements. Deferred tax is measured on an undiscounted basis at the tax rates that are anticipated to apply in the periods in which the timing differences are expected to reverse, based on tax rates and laws that have been enacted or substantively enacted by the Balance Sheet date. Foreign currencies Monetary assets and liabilities denominated in foreign currencies are translated at the rates of exchange ruling at the Balance Sheet date. Non-monetary items that are measured in terms of historical cost in a foreign currency are translated at the rates of exchange ruling at the date of the transaction. Non-monetary items that are measured at fair value in a foreign currency are translated using the exchange rates at the date when the fair value was determined. The resulting exchange differences are dealt with in the Profit and Loss Account. Ordinary share capital The ordinary share capital of the company is presented as equity.