Individual coins or banknotes can be demonetised and cease to be legal tender (for example, the pre-decimal United Kingdom farthing or the Bank of England 1 pound note), but the Bank of England does redeem all Bank of England banknotes by exchanging them for legal tender currency at its counters in London (or by post) regardless of how old they are. Banknotes issued by retail banks in the UK (Scotland and Northern Ireland) are not legal tender, but one of the criteria for legal protection under the Forgery and Counterfeiting Act is that banknotes must be payable on demand, therefore withdrawn notes remain a liability of the issuing bank without any time limits.