Ben Needham's grandfather has arrived on the island of Kos to help police with their search of farmland where Ben was last seen 21 years ago.
Eddie Needham is helping police search teams as they scour land near to where Ben was last seen. Duncan Wood has been speaking to him.
Cadaver dogs, specially trained to pick up the scent of human remains, are being used on farmland where Ben Needham was last seen.
Kerry Needham has spoken exclusively to Calendar as police step up their search to find her son Ben, on the Greek holiday island of Kos.
Police from the UK are using metal detectors in Greece to search the farmland where missing toddler Ben Needham was last seen alive.