Prevent has had some issues.
It shuts down debate in classrooms for fear of being reported, which could actually temper terrorism.
It's based on the belief that holding radical Islamic views puts you on the conveyor belt of terrorism, resulting in the requirement to report non violent radical behaviour. Which, on a personal level would have resulted in me being put through Channel at the age of 12 which would have been unnecessary as I did not grow up into a terrorist.
It creates greater risk assessment within society, when you would have to question whether the likes of teachers/lecturers (with minimal training) are that well equipped or should be tasked with it.
Being wrongly targeted, as the vast majority are can result in feelings of isolation for individuals.
Bearing in mind, it targets pre criminality, you can never quantify its' success.
That's before we discuss the relevance of whether you or I have what the Government ascribes as 'British Values' and what
clear path this will lead to, or its divisiveness; if we don't.