Son charged in Qld woman's disappearance

The son of missing Gold Coast woman Linda Sidon has been charged with her murder.

Police arrested the 28-year-old on Wednesday, despite the inability of investigators to locate Ms Sidon's body.

Ms Sidon, 46, hasn't been seen since June 2009, with a New Zealand-based family member reporting her missing some 18 months later.

The New Zealand-born woman, who suffered a history of anorexia and depression, was originally believed to have committed suicide.

But police ramped up their investigations earlier this year after new information came to light.

Police spent five days searching for a body in the Gold Coast hinterland in August while forensic officers searched the Ashmore housing commission unit Ms Sidon shared with her son earlier this week.

Ms Sidon's son was identified as a person of interest during the August bushland search.

He has been charged with homicide and is due to appear in the Southport Magistrate's Court on Thursday.