The last people outside her family to see her alive were members of the Australian Federal Police who left her Dover Heights home around 7pm on Wednesday,November 11,after executing a search warrant on behalf of ASIC.
Ms Caddick has been at the centre of a major investigation into allegations that she misappropriated more than $20 million from investors.
Assistant Commissioner Mick Willing said the shoe matched the size and description of a shoe Ms Caddick was wearing when police raided her Dover Heights house.
Ms Caddick missed the 4pm deadline on Thursday to attend the registry to hand over her passport or any airline tickets.
After almost 30 hours had elapsed,around noon on November 13,her husband of seven years,Anthony Koletti,38,reported his wife’s disappearance to police.