Police are basing a search and rescue exercise in Dunedin this weekend on the case of a woman missing for two years.
Denise Potter, who was 53 and from Alexandra, disappeared without a trace on 30 March 2015 from her daughter's home in Carroll Street.
She has never been found, and the case has remained open.
More than 60 people belonging to search and rescue teams from around the region will be searching the same areas in the weeks after Ms Potter's disappearance.
Police search and rescue coordinator Sergeant Nathan White thanked Ms Potter's husband and children for giving their consent.
"We know that Denise is still at the forefront of their minds and that this operation may stir up some emotions for them."
Police staff, LandSAR volunteers and Surf Life Saving members will take part in training which will include urban search skills, volunteer searcher management and water rescue.
Sergeant White said residents should expect to see police and search and rescue personnel in the South Dunedin area. There are likely to be pamphlet drops to houses in search areas.
"We will be searching the same areas that were assessed in the weeks following her disappearance and it is possible new information may come to light.
"If that is the case, then each piece of information would be reviewed, assessed and treated accordingly.
"Our presence might cause people to remember something that may be of use, and obviously we want to know anything and everything that could help to find closure for Denise's family."
The exercise will run from Friday evening to around 5.30pm on Saturday.