The mother of an English man jailed under joint enterprise laws will speak at an event organised by supporters of two men convicted of killing PSNI constable Stephen Carroll in Craigavon.
Jan Cunfliffe will travel to Belfast to speak at the annual event organised Justice for the Criagavon Two later this week.
Her son Jordan was given a life sentence after he was convicted under joint enterprise laws of murdering a man in Wigan in 2007.
Ms Cunliffe is a member of the campaign group Jengba - Joint Enterprise Not Guilty by Association - and her story inspired award wining filmmaker Jimmy McGovern to make the acclaimed film Common, which explores the issue of joint enterprise.
Constable Carroll was shot dead by a Continuity IRA sniper in March 2009.
Two Craigavon men John Paul Wootton and Brendan McConville were later convicted of his murder and lost their appeal.
Both men deny any part in the attack.
Jan Cunliffe said she wants to raise awareness around the issue of joint enterprise.
“We want to wake people up and make them realise there have got to be others,” she said.
“We are aware of the evidence and there was no jury and I am not convinced by the convictions at all.
“It’s typical of joint enterprise cases and there are hundreds that I know about.”
Ms Cunliffe will speak at St Mary’s University College on Friday at 7pm.