This Act regulates some aspects of power of attorney in relation with dealings of land. Where a power of appointment by an instrument other than a will is exercised: (a) by deed executed and attested in accordance with the Wills, Probate and Administration Act 1966; or (b) by an instrument under the Land Registration Act 1981 executed and attested in accordance with that Act, the instrument is, in respect of its execution and attestation, a valid exercise of the power notwithstanding that by the