Police will recommence search efforts near Waratah on Sunday as part of ongoing work to locate further items potentially linked to missing Belgian woman Celine Cremer.
Commander Nathan Johnston said a team of specialist personnel would be deployed into the search area along the Arthur River for two days, subject to weather conditions.
"Based on current forecasts, conditions on Sunday and Monday are expected to be suitable for helicopter operations, which will allow us to safely winch our search and rescue experts into the site," Commander Johnston said.
The operation will involve six police search and rescue personnel as well as two wilderness paramedics.
"The focus for this phase of the operation is a highly detailed search of the riverbed across a 350-metre section between two locations where previous items were located," Commander Johnston said.
"Specialised equipment will be used to clear natural log jams in case relevant materials have become trapped."
Wilderness paramedics will form part of the team to manage workplace health and safety risks associated with the challenging terrain, as well as to support search operations.
Commander Johnston said the number of personnel involved was appropriate for the complexity and environment of the task.
"While we considered the use of SES members and volunteers, the environment requires specialist training and equipment, and the associated safety and liability risks mean this aspect of the search must be undertaken by police specialists."
"Our priority is to recover as much as we can, to build a complete picture of what has occurred, and to help provide answers for Celine's family. That remains at the heart of this operation."
The forensic testing process of items located last week is continuing, with no further updates available at this point in time.