The GRA say the force is "absolutely determined" to see further justice served over the killing of Detective Garda Adrian Donohoe.
He was shot dead during an armed robbery outside Lordship Credit Union in County Louth in January 2013.
Aaron Brady from Crossmaglen, County Armagh was found guilty yesterday of capital murder and will be sentenced in October.
Gardai believe at least five people were directly involved in the robbery and murder, with many more providing back-up.
Young Arklow Tennis Talent Secures Sponsorship for Elite Training in Mallorca
Revised Plan For Boghall Road Site Could Create 30 Jobs In Wickow
Wicklow Reach For The Stars Dreaming Of Dubs Upset
Parents “Left In The Dark” Over New Bray Special School – Brady
Village Life Beckons - Hotel To Become New Homes In Enniskerry