Police have commenced digging in a remote area of Argyll where they believe Lynda Spence was buried after her murder more than ten years ago.
Authorities confirmed on March 16 that they were assessing a remote area of ground near Dunoon.
Detectives have now concluded the assessment of the site, and specialist search teams are digging the plot for potential evidence.
Forensic scientists and soil experts from across the country have been appointed for the search work, alongside local policing officers and Police Scotland detectives.
Ms Spence disappeared in 2011 and two men were later convicted of her murder, and sentenced to life in prison.
Colin Coates and Philip Wade were found to have abducted, tortured, and killed Ms Spence in 2013, however her remains were never found.
Additionally, accomplices David Parker and Paul Smith were each jailed for 11 years for her assault and abduction.
Detective Superintendent Suzanne Chow said: “A detailed assessment of the location has been completed and we have now commenced digging to further explore the site for potential evidence.
“This will be an extremely detailed operation, involving specialist search teams from Police Scotland, forensic scientists and soil experts from across the United Kingdom.
“The family of Lynda Spence are being kept updated as efforts to establish if her remains are within this area continue.
“I would ask anyone with information to please come forward and speak to officers.”