As stated in Prevent duty guidance:

Current guidance

The Counter-Terrorism and Security Act 2015 contains a duty on specified authorities to have due regard to the need to prevent people from being drawn into terrorism. This is also know as the Prevent duty.

In March 2015, Parliament approved guidance issued under section 29 of the act about how specified authorities are to comply with the Prevent duty. Specified authorities must have regard to this guidance when complying with the Prevent duty.

Two versions of the guidance were approved: one for specified authorities in England and Wales, and one for specified authorities in Scotland.


Is there any evidence to suggest that this has been successful in lowering radicalization since it began?


It's almost impossible to provide any sort of empirical evidence to prove that this law and/or the guidelines are effective. Let's say that the amount of terrorism drops in 2016 and 2017, how would we establish a causal relationship with this law? Terrorism is caused and influenced by many factors, and a law such as this is not exactly a watershed event such as a peace agreement or decisive military victory, at best it will nudge terrorism down.

For better or for worse, some political questions can't really be answered with any degree of certainty due to the extraordinary complexity of the world.

So no, this evidence does not exist, and is unlikely to ever exist. It is a personal judgement call.

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