No trace has ever been found of Michael Woodward, but almost two years since Chile assumed responsibility for finding victims, cautious progress is being made

In the weak winter sunshine forensic investigators in white suits cast long shadows as they stepped between gravestones at Playa Ancha cemetery in the Chilean coastal city of Valparaíso.

But as the rhythmic click of spades and the throb of an excavator faded, a third search for the remains of Michael Woodward reached a frustrating conclusion.