GREENOCK'S most famous policeman took to the Clyde to film for a new Scottish travel documentary.

Martin Compston, best known for his role as Steve Arnott in BBC's Line of Duty, returned to Inverclyde for a jaunt on the Tonka tug owned by Clyde Charters.

The yellow boat has been operating sightseeing trips to the MV Captayannis under the watchful eye of owner Ronnie Doolan.

Martin went on board while filming for Scottish Fling, a new six-part show about 'what makes Scotland tick'.