NSW Police have begun a new forensic search at the former Bayview home of missing woman Lynette Dawson.
Detectives from Strike Force Scriven will hold a media conference at 11am on Wednesday to provide an update on the investigation.
"As part of their ongoing commitment to providing answers to her family, Strike Force Scriven detectives have commenced a forensic search at Mrs Dawson's former home at Bayview," a police statement said.
In 2015, detectives from the Homicide Squad's Unsolved Homicide Unit established Strike Force Scriven to re-investigate the circumstances surrounding the 1982 disappearance and suspected murder of the northern beaches wife and mother.
The case has been the subject of a highly popular podcast, Teacher's Pet, by The Australian.
Lynette Dawson, a 33-year-old mother of two girls, was last seen in January 1982.
Mrs Dawson spoke to her mother on the evening of January 8, 1982, while she was at home in the Sydney suburb of Bayview with her husband, Christopher Dawson.
She made plans to lunch with her mother the following day at Northbridge Baths, but did not show up.
She was reported missing on February 18, 1982 by her husband.
After two coronial inquiries, in 2001 and 2003, no one was convicted of her suspected murder.
However, her husband, a former professional rugby league player, has long been a suspect.
Chris Dawson, who played for the Newtown Jets, has consistently denied any involvement in his wife's disappearance.