Of the 76 men who claimed to have injected at some time, seven had begun injecting while serving their current sentence. All of the seven injected with used equipment.

Injecting in prison appeared to occur at a much reduced frequency; weekly or monthly, as opposed to daily when on the outside. When on the outside, two men admitted to always sharing needles and syringes. In prison, 20 men admitted to always sharing injecting equipment.

Of the twelve men who were found to be HIV-positive, ten said that they always injected with used equipment in prison, and eight claimed they never did so on the outside. Some prisoners estimated that up to 30 inmates would use the same needle and syringe.

The cleaning methods adopted by many of the inmates were mostly ineffective; 17 would rinse the needle and syringe with hot or cold water, three used bleach, three used hairdressing liquid, one used boiling water and seven used a combination of techniques.

Between one quarter and one third of men who injected drugs between January and June 1993 became HIV-positive while in prison.

Only one of the 227 inmates who were counselled for HIV admitted to having sex with another man while in prison. Of the 33 inmates who had injected drugs while in prison, the median number of female sexual partners in the twelve months before incarceration was three. All except one said they never used condoms.