Police will this morning continue forensic tests on a home in Wanneroo as part of a search for missing father David Blenkinsopp.
Detectives sealed off part of Taywood Drive last night before forensics officers entered the house.
Yesterday, Mr Blenkinsopp's wife Diana told of her "gut turning" and "sickening" sense of fear for her 30-year-old husband and her heartbreak at hearing her sons call out for their daddy.
He disappeared on March 4 after stopping at his Taywood Drive home about 1.45am to tell his wife he was walking a friend to her house on the same street. Neither home is the one of interest to police.
"He is a devoted father of two little boys and part of a loving family who are very worried," Mrs Blenkinsopp said.