Police divers join search for missing boy William Tyrrell

Police divers have arrived at the Kendall property where William Tyrrell vanished as a search for the missing boy enters its 10th day.

Police divers have arrived at the Kendall property where William Tyrrell was last seen, on the 10th day of the search for the missing boy’s remains.

Police are inspecting two water tanks at the Benaroon Drive home where William, then three, vanished in 2014.

NSW Police returned to the mid north coast property, then owned by William’s foster grandmother, 10 days ago to launch a fresh search based on what they have said is new information in the case.

Officers have set up search area about a kilometre from the house, where they have been scouring the creek bed and surrounding bushland for evidence.

Police and other emergency services personnel have been clearing vegetation and digging up the ground around the creek.

Strike Force Rosann detectives continue the search for William Tyrrell's remains in scrub near Kendall. Picture: NCA NewsWire / Peter Lorimer.

Cadaver dog Wags is sent into the search area on Wednesday. Picture: NCA NewsWire / Peter Lorimer.

Officers are combing through each bucket of dirt by hand under the guidance of forensic experts including a hydrologist.

The creek had been drained but continual wet weather on the NSW coast meant it had partially refilled by Wednesday afternoon.

Police have covered most of the search area with big black tarps to protect their efforts from the rain.

Police are combing through excavated dirt by hand as they search for evidence. Picture: NCA NewsWire / Peter Lorimer.

Police searched inside two water tanks on the property on Wednesday. Supplied Picture: NCA NewsWire / Peter Lorimer.

On Wednesday afternoon about 20 officers were working on the creek bed with a forensic anthropologist, while another 10 police worked on higher ground with the excavator.

Wags the cadaver dog has been sent into the search area.

NSW Police Commissioner Mick Fuller last week confirmed detectives were focusing on one person of interest.

It has since emerged that the person of interest in the case is William’s foster mother, a 56-year-old woman from Sydney.

She has strongly denied any involvement in or any knowledge of his disappearance.

William’s foster parents were last Wednesday charged over the alleged assault of a child — not William — on Sydney’s upper north shore.

In a statement released that afternoon, NSW Police said the couple were charged with common assault of a child who cannot be named for legal reasons.

The couple were on Tuesday granted an adjournment. They will enter a plea to the assault charges against them on December 7.