David Harris with his sister Leanne (Image: Supplied)

An urgent state government review into the National Disability Insurance Scheme (NDIS), prompted by the death of South Australian woman Ann Marie Smith, has found huge gaps in the system. 

The final report is expected to include details on the death of David Harris, Crikey has been told, who died last year in NSW after being cut off from multiple disability support services. 

An inquest, taskforce and manslaughter investigation has been launched into Smith’s death, who had cerebral palsy and died this year after allegedly being left in the same chair in her home for a year.