The Lost Laws of Ireland: The Brehon Laws The Brehon Law Academy is very pleased to post our first guest contribution! And we're doubly pleased to have such an accomplished author and contributor to the study of the Brehon Laws - Catherine Duggan. Catherine Duggan is the author of "The Lost Laws of Ireland: The Brehon Laws", a fresh and relatively recent addition to the library of works on Brehon Law. We were delighted when Catherine Duggan contacted us several months ago