How an undercover agent helped prevent a mass-casualty plot in manchester

an undercover officer posed online, gathered evidence over months and played a key role in stopping a planned mass attack in manchester, leading to convictions and life sentences

Who was involved
Specialist counterterrorism officers led the inquiry, supported by a protected undercover operative. The principal suspect—a married father of two from Wigan—has since been convicted, along with others, of preparing terrorist acts.

What happened
A lengthy covert policing operation uncovered and disrupted an alleged plot to inflict mass casualties in Manchester.

The probe blended online monitoring with controlled, in-person meetings and targeted evidence-gathering by the undercover officer.

Where it took place
Much of the activity began online and continued during reconnaissance visits to locations in and around Manchester. Arrests were made while suspects were attempting to obtain firearms and ammunition.

Why the investigation began
Investigators say expressions of extremist support on social media escalated into concrete planning and efforts to procure weapons. Court evidence linked those online exchanges to reconnaissance and attempts to acquire armaments.

How the operation unfolded
The case opened with monitored online contact.

Investigators flagged social media messages that demonstrated ideological support for extremist causes; those early exchanges helped frame later steps of the plot.

Contact moved from texts to voice calls and then to face-to-face meetings arranged by the suspect