Cahal has experience both as a trial advocate and as an appellate advocate. He appears regularly in all jurisdictions. He has a wide practice in both civil and criminal law. He has a particular interest in administrative law.
AREAS OF PRACTICE
A. JUDICAL REVIEW
Cahal has appeared in numerous judicial review matters includng:
(a) In the High Court in VBAO v Minister for Immigration and Multicultural and Indigenous Affairs (2006) 233 CLR1 and in a number of special leave and original jurisidction matters.
(b) In 11 Full Federal Court cases inclduing VGAO v MiMIA  FCAFC 68; Sok v MIMIA  FCAFC 56; Applicant M169 of 2003 v MIMIA  FCAFC 311; Applicant M164/2002 v MIMIA  FCAFC 16; VNAA v MIMIA  FCAFC 134.
(c) In over 50 cases in the Federal Court mainly in migration but also in intellecutal property.
(d) In over 60 cases in the Federal Magistrates Court and Federal Circuit Court.
(e) In the Supreme Court of Victoria and Court of Appeal in judicial review of:
(i) a VCAT decision (Ismail v Rustom  VSC 625); (ii) rulings by the Coroners Court of Victoria (Priest v Deputy State Coroner  VSC 449; Priest v West  VSCA 327) and (iii) rulings by a Victorian Magistrate (Zion-Shalom v Magistrates Court of Victoria  VSC 476).
B. SERIOUS SEX OFFENDERS (DETENTION AND SUPERVISION) ACT 2009
He appears in the County Court in matters arising under the Serious Sex Offenders (Detention and Supervision) Act 2009.
C. TRIBUNALS - VCAT AND COMMONWEALTH AAT
Both Commonwealth and Victorian Freedom of Information and Privacy matters - he also teaches these subjects at, and revises course materials for, the Leo Cussen Centre For Law.
Psychologists Rehistration Board of Victoria v G  VCAT 1927.
D. CRIMINAL LAW
Cahal has appeared for the Defence in corporate fraud and bribery matters. He also appears in summary and indicatble crime generally.
E. INTELLECTUAL PROPERTY
Miles v Commissioner of Patents  FCA 1017
F. FAMILY LAW
Cahal appears in the Federal Circuit Court and Family Court in parenting order and property matters.
Cahal has published articles in the areas of employment law and migration law. He has also reviewed texts on statutory demands and texts in the areas migration law and admiralty and maritime law.
Cahal grew up in Northern Ireland and is a graduate of the Queen's University, Belfast in Northern Ireland. He studied for his Bar Exams in Northern Ireland. After coming to Australia, he undertook further legal studies at the University of Melbourne.
From 1995 he worked at the Federal Court of Australia and from 1997 to 1999 he was Associate to Justice Ryan of the Federal Court.
Cahal is a former elected member of the Victorian Bar Council from 2004 to 2007. He has also served on sub-committees of the Victorian Bar including the Asylum Seeker Subcommittee of the Legal Assistance Committee and the Professional Standards Committee. He currently serves on the Bar's Pro Bono Commitee.