A retired Victorian Police Detective Sergeant, who has gone over hundreds of missing persons cases and specialises in missing persons searches in bush locations, says he has been encouraged by the WA Police investigation into the disappearance of four-year-old girl Cleo Smith.

<p>A retired Victorian Police Detective Sergeant, who has gone over hundreds of missing persons cases and specialises in missing persons searches in bush locations, says he has been encouraged by the WA Police investigation into the disappearance of four-year-old girl Cleo Smith.</p>

Perth Today will keep you up to date with all the latest breaking stories and issues in Perth.

<p>Perth Today will keep you up to date with all the latest breaking stories and issues in Perth.</p>

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