Thirteen deceased, retired and serving members of An Garda Síochána have been awarded medals for bravery.
They include two officers shot dead and another seriously injured by the IRA in 1940.
Two officers who helped free a Dublin dentist, who was kidnapped and mutilated by the INLA in 1987, were also honoured.
The ceremony took place at a memorial garden in Dublin Castle dedicated to the memory of gardaí killed on duty.
Three gold medals were posthumously awarded to officers involved in a raid on an IRA training base in 1940.
Detective Garda Richard Hyland was shot dead at the scene and Detective Sergeant Patrick McKeown died of his injuries the next day.
A colleague, Detective Garda Michael Brady, survived the gunshot wounds he sustained in the attack.
It brings to five the number of gardaí honoured for their actions on that day.
Marie Hyland was just two when her father was murdered.
She pushed for recognition for him and described today as an "emotional day".
His children learned what happened to him from newspaper clippings kept from the time, she said.
Garda Commissioner Drew Harris attended the 97A Rathgar Road Commemorative Plaque Unveiling Ceremony by Dublin City Council to honour Detective Sergeant Patrick McKeown & Detective Garda Richard Hyland, who were killed in the line of duty, 81 years ago today. pic.twitter.com/hEH5IY9V5V
— Garda Info (@gardainfo) August 16, 2021
Two gardaí who helped free kidnapped dentist John O'Grady in 1987 were also presented with medals.
A Silver Scott medal was awarded to Detective Inspector Richard Fahy, and a bronze to retired Detective Garda Brian Coade.
Mr O'Grady had been abducted several weeks earlier and had several fingers severed by his captors who made a IR£1.5m ransom demand.
Mr Coade described a 15-minute firefight on a Dublin street as they engaged the gang members while taking care to protect bystanders.
Eight bronze medals were awarded to other officers who confronted armed robbers, and in one case disarmed an armed man who was threatening self-harm.
The bronze medal recipients are Inspector Darren Kirwan, Sergeant John McDonagh, Sergeant Joseph Young, Sergeant Pat Carroll, Garda Robert Duffy, Garda Barry Hennessy, Garda Michael Lee and
Garda Andrew Gardiner.
Sgt Young and the now-retired Sgt McDonagh were recognised for their role in apprehending two masked and armed men and freeing a family in Cork on 2 May 2005.
Two masked men had entered the home of the O'Donovan family in Rochestown and held Katie O'Donovan and her four children hostage until her businessman husband returned.
He was violently assaulted during the ordeal and told he would have to hand over a large sum of money from his business. He managed to escape during the night and alerted gardaí.
When the two armed men attempted to leave they were confronted by then Garda Young and Garda McDonagh and arrested.
