sentences:  Horrigan worked with law firm Allens Arthur Robinson (AAR), first as a senior associate from 1991 to 1994, then as a consultant since 1995.In 1995, he also became an associate professor at Queensland University of Technology.In July 2000, he became a professor in the School of Law at the University of Canberra, as well as the director of the National Centre for Corporate Law and Policy Research and deputy director of the National Institute for Governance, until 2005.