I’m going to try to answer this because it’s a great question.
But because I’m not verified I hope (please tell me if I’m not) to couch this in the correct terms.
It is my opinion that those individuals who are experiencing urges to abuse, frighten, injure or kill others, be that due to paranoid delusions or sexual interest, be offered telephone counselling free of charge much like The Samaritans.
A number, with a guarantee of anonymity, that would direct potential perpetrators to treatment pathways before offending could reduce the incidence of sexual crime. It would need to be manned 24/7 and offer judgement free “talking down” from the urges, as well as making individuals aware that they can receive help without facing imprisonment simply for their ideas.
It is again my opinion that volunteering for such a service ought to be one option of several mandatory placements required for professionals in the clinical psychology field to gain their BPA / similar membership.
In the society we now inhabit, where so much focus is given to gender equality, moral outrage appears to dissuade people in my field from suggesting this to the public. But -in my opinion again- this approach has been shown to help reduce incidences of sexual abuse towards children in other countries.
Prevention is better than cure!