On 31 January 2020, two days before the attack, undercover officers spotted Amman buying four small bottles of Irn-Bru, kitchen foil and parcel tape from Poundland - items they feared could be used to make a hoax suicide belt.
Police and MI5 officers were so concerned about Amman that they held an emergency meeting to discuss the prospect of arresting the recently released terrorist.
However, HMPS decided not to recall him to prison. Amman was put under round-the-clock armed surveillance instead.
Police and MI5 officers were so concerned about Amman that they held an emergency meeting to discuss the prospect of arresting the recently released terrorist.
However, HMPS decided not to recall him to prison. Amman was put under round-the-clock armed surveillance instead.
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