Andrew was admitted to practice as a solicitor in Australia in 1984 and in London in 1991. Since 1997 he has practised exclusively as a barrister. He was appointed Senior Counsel in 2012. He has appeared on many occasions in the High Court of Australia and in intermediate courts of appeal. Andrew has a broad appellate practice having appeared in appeals involving administrative law, constitutional law, contract, criminal evidence and procedure, professional indemnity, property, superannuation, torts and trust law.