Catherine Greene (b.1960) graduated in sculpture from NCAD in 1984. She is an established figurative sculpture working in bronze and latterly mixed media and lives and works in county Kildare. 'Portal' was specially commissioned for the UCD Sutherland School of Law and marks the transition from the outer residential and support areas of the campus into the pedestrianised academic heart of the university. Viewers are invited to walk through the sculpture echoing the allegorical nature of the work.