Deone was first admitted as an Australian lawyer in 1998 and was called to the New South Wales Bar in 2010.
Deone predominantly appears in criminal law and family law matters.
Deone previously served as a Senior Solicitor Advocate for the Aboriginal Legal Service (ALS) in Western Sydney, where he managed the criminal legal practice.
Deone regularly appears in the Local, District and Supreme Courts and the Federal Circuit and Family Court of Australia, handling serious criminal matters, including bail applications, and family law disputes.
Deone has been involved in several high-profile legal matters in Sydney:
- In complex bail applications, including for high-profile clients.
- Representing individuals in a high-profile Sydney alleged terrorism matter.
- In murder trials and other serious criminal proceedings, often advocating for mental health assessments and for client welfare.