Detectives investigating the mysterious drowning of a parish councillor off Falmouth are now looking for a boat, which shares a name with the murdered man's vessel.

The body of 56-year-old Peter Solheim was recovered from the sea by fishermen five miles off Black Head, on The Lizard Peninsula in June. He was last seen getting into his small white dinghy Izzwizz with an unidentified man at Mylor harbour, near Falmouth, Cornwall, on June 16.

Police have issued thousands of posters and brochures in their search for clues and have also involved the Royal Navy, which carried out a search of the sea bed off The Lizard.