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 made up a box with recording equipment that we’re sending down into as many mine shafts as we can just to see what’s at the bottom of the mineshafts to see if we can locate Jenny,” Detective Sergeant Peter Sloan said.

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 begin to move in on the area – with plans to overturn the land – it’s a race against time to search as many shafts as possible.

“Even though these people have been missing for 10 years, it’s never put to a resolution until such time as we can categorically say we’ve done everything possible,” Sloan said.