The Herald has recently reported cases where elderly residents were strapped to chairs all day with minimal movement of repositioning.
Chief Ombudsman Peter Boshier said his team would look out for those sorts of incidents. They will also begin monitoring detainees in court cells - opening up about 60 detention facilities to inspections.
It will take about 12 months for random inspections to start.
The number of New Zealanders with dementia is projected to nearly triple to about 170,000 by 2050.
Dementia NZ wants greater support and training not just for staff working in facilities but also family members and home carers who look after people with dementia at home.
"Often a person with dementia will end up in care earlier than they need to due to their carer becoming unwell or exhausted," Sullivan said.
Dementia NZ's local branches receive less than half of their funding from DHBs, and Sullivan said a lack of money limited the support offered to families.
Greater oversight
• The Office of the Ombudsman's watchdog role will be expanded to include privately-run dementia facilities and detainees in court cells.
• The number of New Zealanders with dementia is projected to nearly triple to about 170,000 by 2050.