Related Rule
New Zealand
Practice Relating to Rule 120. Accommodation for Children Deprived of Their Liberty
Upon ratification of the 1989 Convention on the Rights of the Child, New Zealand reserved the right not to apply Article 37(c) “in circumstances where the shortage of suitable facilities makes the mixing of juveniles and adults unavoidable” and “where mixing is considered to be of benefit to the persons concerned”. 
New Zealand, Reservations and declarations made upon ratification of the Convention on the Rights of the Child, 6 April 1993, reprinted in UN Doc. CRC/C/2/Rev.4, 28 July 1995, p. 27.