Crimewatch reconstrution music

during a reconstruction in crimewatch, there was a piece of music used which appeared to be played on a mandolin (or other string instrument). i think i've heard it on 'the apprentice' before... anybody know what this piece of music is called?

it's the piece of music which plays as soon as you get into this reconstruction:


http://www.bbc.co.uk/crimewatch/cases/2008/12/egham_sexualassault/index.shtml