Reportable conduct is defined in the Child Wellbeing and Safety Act 2005. It means

• sexual offences (against, with or in the presence of, a child);
• sexual misconduct (against, with or in the presence of, a child);
• physical violence (against, with or in the presence of, a child);
• behaviour that causes significant emotional or psychological harm; and
• significant neglect.

Further information can be found here.