(BBC) The authorities would have been led to “the bomb” if they had followed the Manchester Arena attacker on his return from Libya, an inquiry has heard.
Giving evidence, a senior MI5 officer agreed if Salman Abedi had been trailed when he returned to the UK, he could “conceivably” have revealed his plans.
The Manchester Arena inquiry previously heard it was an error not to question him on 18 May 2017.
Abedi detonated a device at the venue on 22 May 2017, killing 22 people.
The MI5 officer, referred to as Witness J, has been giving evidence as the public inquiry looks into what was known about Abedi before the bombing.
