The thesis was originally supervised by Ivo Samkalden until his appointment as minister of Justice in 1965, and subsequently by Herman Hendrik Maas.
[1] While in this position, he opposed a Dutch referendum on a European Constitution in September 2003 and was the only member of the council to do so.
[9] In 2005 Lauwaars was featured in article by de Volkskrant on how the role between government and citizens was changing.
[1] From 1983 to 2011 he was an editorial member of the SEW, Tijdschrift voor Europees en economisch recht.
[11] Together with Christiaan Timmermans he wrote a handbook on European Union law, titled Europees Gemeenschapsrecht in kort bestek.