Children make emotional plea help to find missing mum

The children of a woman who went missing in the West Australian outback five weeks ago have made an emotion appeal for help to find their mother.

Jennie Kehlet, 49 and her 47-year-old husband Raymond were last seen in mid March after going out on a prospecting trip near Sandstone, 720km north-east of Perth.

Three weeks later Raymond's body was found in an abandoned mineshaft, and Jennie's three children – Brittany, Kelly and Darcy – can only wonder why.

"It's like a jigsaw puzzle and we've got about four of a hundred pieces," Darcy told 9NEWS.

But today, police said the disappearance of Jennie Kehlet was not suspicious.

"At this point in time, we've not seen anything that suggests criminality," Detective Superintendent Anthony Lee said.

"However, we are making sure we investigate thoroughly, and have got all the possibilities."

Police also refuse to reveal the cause of Raymond Kehlet's death following an autopsy, but again insist there's nothing suspicious.

They believe that Jennie Kehlet somehow got lost in the outback and that its possible she was carrying all the couple's prospecting equipment at the time, including a large metal detector, heavy chain, a GPS and a detector coil.

Today, in a public appeal, police released pictures of the missing equipment and encouraged family members to ask for help.

"You can come up with a thousand and one scenarios, and really, we're probably never going to have an answer until we find Jennie," Malcolm Kehlet, Raymond's brother, said.

So far the search has covered 11 square kilometres on land, and 625 sq km in the air, with police saying they are now considering going back to Sandstone.

Jennie's children still have not given up their search for answers.

"Hopefully a happy answer – we're still hoping for a good answer but time is ticking basically," Darcy said. 

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