The former chief detective in the William Tyrrell case has defended the way it was handled amid new revelations.

Police sources have told Ben Fordham the sole person of interest is William’s foster mother, who strongly denies any involvement.

Officers have recently begun extensive searches on three locations in Kendall, where the then three-year-old disappeared.

Police Commissioner Mick Fuller this week said some time was wasted in the initial investigation and the new team inherited what he called “a bit of a mess”.

Gary Jubelin told Ben Fordham he wasn’t suspicious of the foster mother during his investigations.

“My impression is that she’s a very decent human being.”

Press PLAY below to hear the full interview