Cold case detectives are sending cameras down hundreds of mineshafts in WA’s Goldfields as they search for the remains of Jennie Kehlet.

9News was alongside police as they used the cameras to search the 300 mine shafts.

It’s the new cold case team’s eighth trip to the Goldfields this year.

Covering more than 2000 square kilometres, they’re forced to think outside the box.

“We’ve assembled a box containing recording equipment, which we are deploying down as many mine shafts as possible, in hopes of discovering what’s at their base to potentially locate Jenny,” explained Detective Sergeant Peter Sloan.

In 2015, Ms Kehlet was prospecting with husband Ray Kehlet and an acquaintance.

Mr Kehlet’s body was discovered deep down a mine shaft and his wife is still missing, presumed murdered.

Police say all of the couple’s belongings were accounted for except three items: FMG boots, gloves and a quad bike key.

Detectives today revealed the water shaft is an area of interest, police searching it as recent as yesterday.

It’s only located 200 metres from where Mr Kehlet’s body was found.

As gold mining companies start to move in on the area with plans to overturn the land, it becomes a race against time to investigate as many shafts as we can.

“Although these individuals have been missing for a decade, we cannot bring closure until we can conclusively state that every effort has been made,” Sloan remarked.