46Transfer of guardianship in case of death, incapacity etc of guardian
(1)If any person (other than a local authority) having the guardianship of a patient received into guardianship under this Part of this Act—
(a)dies; or
(b)gives notice in writing to the local authority concerned that he desires to relinquish the functions of guardian,
the guardianship of the patient shall thereupon vest in the local authority concerned, but without prejudice to any power to transfer the patient into the guardianship of another person under section 45 of this Act.
(2)If any such person, not having given notice under subsection (1)(b) of this section, is incapacitated by illness or any other cause from performing the functions of guardian of the patient, those functions may, during his incapacity, be performed on his behalf by the local authority concerned, or by any other person approved for the purpose by that authority.
(3)Where the guardianship of a patient is transferred to a local authority or other person by or under subsection (1) of this section, section 45(3) of this Act shall apply as if the patient had been transferred into the guardianship of that authority or person in pursuance of that section.