Deslea holds the following qualifications:
- Master of Business Administration
- Graduate Certificate in Public Sector Management
- Diploma of Project Management
- Certified Practicing Project Manager
- Graduate, Australian Institute of Company Directors
- Certificate IV in Training and Assessment
Deslea is a member of the following professional organisations:
- Australian Institute of Company Directors
- Australian Institute of Project Management
- Business Continuity Institute (Associate)
- ISACA
Deslea has also undertaken short courses and units in the following subject areas:
- Economics
- Technology and software development
- Administering contracts
- Superannuation administration
- International development
- Tendering, contracting, and outsourcing
- Risk and insurance management
- Fraud control
- Business continuity
- Intellectual property management