Michael Butler
- Foilsithe: 3 Deireadh Fómhair 2024
- An t-eolas is déanaí: 1 Samhain 2024

The Principal Chemist for Health/Human Toxicology Case Management/Laboratory Services/ Human Resources has responsibility for client liaison and co-ordination of the analytical work of the following sections:
• Health
• Human Toxicology Case Management
Responsibility for services provided by the following sections:
• Laboratory Services
• Human Resources