The hunt to find missing RAF airman Corrie McKeague has now cost Suffolk Police more than £1 million.
Police search teams have spent nearly eight months looking for the 23-year-old since he disappeared following a night out with friends in Bury St Edmunds on September 24.
It makes the case one of the most expensive missing person's investigations undertaken by Suffolk police forces.
Detectives are confident that Corrie is buried in landfill after data from a bin lorry showed that the rubbish collected from where he went missing could have carried his body.
Specialists are continuing to comb the tip in Milton, Cambs., where they have spent more than nine weeks sifting through 2,850 tonnes of rubbish.
The search is expected to be completed later in the month.
Today marks exactly two years since the disappearance of RAF serviceman Corrie McKeague in Bury St Edmunds.
The father of RAF serviceman Corrie McKeague has claimed his son is "no longer missing" and that he now knows what happened to him.
Suffolk Police said Corrie's disappearance will now be treated as a cold case as police say there are no "realistic lines of enquiry left".