As part of his medical training, [expert witness] had undertaken training in pharmacology. That included gaining an understanding of dosage, different types of medication, monitoring for physical or psychological side effects, and an appreciation of factors that may preclude the prescription of certain antilibidinals.
From about the mid-1990s, for 10 years [expert witness] was employed fulltime at James Nash House which included an outpatient service for forensic patients in the community. He prescribed antilibidinal medication to a number of those patients as well as a number of inpatients for whom he was responsible.
[expert witness] conceded that he was not up to date in his knowledge of the most recent antilibidinal medications that have been developed over the last two or three years, he was certainly familiar with Depo‑Provera and other antilibidinals that has been around for a number of years.[19]
I am satisfied that [expert witness] has the requisite expertise to provide the opinions that he has given in his report and in his evidence on the use and effect of antilibidinal medication.