 A further reappraisal of the artefacts was carried out in 2003/04 by Philip Dunn, a student at Bournemouth University.This confirmed Guido and Smith's findings and went on to identify a number of flint artefacts that were diagnostic of Neolithic occupation at the site.Following on from this study a large scale geophysical survey was conducted which covered 46% of the interior using a Fluxgate Gradiometer.