New South Wales Consolidated Regulations(cf Crimes (Detention after Arrest) Regulation 1998 , cl 25)
If an application for a detention warrant is made in respect of a vulnerable
person, the application for the warrant must include reference to the fact
that the person is believed to be a vulnerable person, the nature of the
person’s vulnerability, the identity and relationship to the person of any
support person who is present during the investigative procedure concerned,
and any particular precautions that have been taken in respect of the
vulnerable person.