We have had some of our own experience with piloting harm reduction measures. A few years ago, there was a safer tattooing initiative piloted by the Correctional Service of Canada whereby inmates were trained how to properly use hygienic tattoo equipment. Then the inmates would pay for the use of that equipment and would pay the costs of being tattooed. The idea behind this was not to promote body art but to promote public health.
In those days, inside a federal penitentiary you could expect 30% of the population to be hepatitis C-positive. HIV rates are much higher inside prisons than they are outside prisons. The early evaluation of the safer tattooing initiative was that it was very positive. It was nonetheless cancelled.