In this Part of this Act—

• " child " and " young person " have the same meaning as in the [1933 c. 12.] Children and Young Persons Act 1933 ;

• "civil prisoner" has the meaning given to it by section 48(2)(c) above;

• "guardian", in relation to a child or young person, has the same meaning as in the Children and Young Persons Act 1933 ;

• " place of safety ", in relation to a person who is not a child or young person, means any police station, prison or remand centre, or any hospital the managers of which are willing temporarily to receive him, and in relation to a child or young person has the same meaning as in the Children and Young Persons Act 1933 ;

• "responsible medical officer", in relation to a person liable to be detained in a hospital within the meaning of Part II of this Act, means the registered medical practitioner in charge of the treatment of the patient.

Any reference in this Part of this Act to an offence punishable on summary conviction with imprisonment shall be construed without regard to any prohibition or restriction imposed by or under any enactment relating to the imprisonment of young offenders.

Where a patient who is liable to be detained in a hospital in pursuance of an order or direction under this Part of this Act is treated by virtue of any provision of this Part of this Act as if he had been admitted to the hospital in pursuance of a subsequent order or direction under this Part of this Act or a subsequent application for admission for treatment under Part II of this Act, he shall be treated as if the subsequent order, direction or application had described him as suffering from the form or forms of mental disorder specified in the earlier order or direction or, where he is treated as if he had been so admitted by virtue of a direction under section 42(1) above, such form of mental disorder as may be specified in the direction under that section.

Any reference to a hospital order, a guardianship order or a restriction order in section 40(2), (4) or (5), section 41(3) to (5), or section 42 above or section 69(1) below shall be construed as including a reference to any order or direction under this Part of this Act having the same effect as the first-mentioned order; and the exceptions and modifications set out in Schedule 1 to this Act in respect of the provisions of this Act described in that Schedule accordingly include those which are consequential on the provisions of this subsection.

Section 34(2) above shall apply for the purposes of this Part of this Act as it applies for the purposes of Part II of this Act.

References in this Part of this Act to persons serving a sentence of imprisonment shall be construed in accordance with section 47(5) above.

Section 99 of the [1933 c. 12.] Children and Young Persons Act 1933 (which relates to the presumption and determination of age) shall apply for the purposes of this Part of this Act as it applies for the purposes of that Act.