To ask the Secretary of State for the Home Department, pursuant to the Answer of 2 September 2025 to Question 69736 on Counter-terrorism, if she will take steps to ensure that the senior figure who is scrutinising all the previous reviews will (a) have access to documentation and (b) be able to interview people involved in (i) the Prevent programme and (ii) security services who dealt with Ali Harbi Ali.

To ask the Secretary of State for the Home Department, what assessment she has made of the effectiveness of the Prevent programme in the case of Ali Harbi Ali.

To ask the Secretary of State for the Home Department, whether checks were undertaken with Ali Harbi Ali’s school in Croydon before he was permitted to exit the Prevent programme.

To ask the Secretary of State for the Home Department, what information was held by the security services regarding Ali Harbi Ali from the five years between his engagement with Prevent and the murder of Sir David Amess.

To ask the Secretary of State for the Home Department, what social media checks were carried out on Ali Harbi Ali (a) during and (b) after his involvement with the Prevent programme.

Prevent has been an integral part of our counter-terrorism machinery for the last twenty years, supporting over 5,000 people away from radicalisation since the introduction of the Prevent duty in 2015.  Of course, we must continue to identify where Prevent has failed. However, significant improvements have been made to Prevent over the years since this Prevent case, and we continue to drive further change.

The Prevent Learning Review and Lord Anderson’s review were both published by Government earlier this year, and can be found on GOV.UK (Prevent learning review: Sir David Amess attack - GOV.UK and Lessons for Prevent - GOV.UK). These show clearly where Prevent, policing and law enforcement partners must take action to strengthen their approach. Lord Anderson’s review in particular sets out the position in relation to Prevent and the Security Service and identifies some key areas of focus for further review.

Sir David Amess was a valued colleague and a friend to many, and it is right that we seek to ensure such a terrible loss cannot happen again. The Home Secretary and I will work closely with the reviewer conducting the further overarching review to ensure that every avenue has been explored. It is important that the voice of the family is central to this process, and the Home Secretary will ensure they are kept up to date with the progress of the review.