I understand the UN agreement is for military weapons, not Police.
British Police adhere to what was ACPO guidance (Now National Police Chief's Council - NPCC) which says police firearms should be destroyed when no longer used.
As we know, this hasn't always been adhered to and it is guidance, not law.
I would imagine the Garda have their own rules.
Roy thanks for the confirmation on that; I had wrongly assumed it applied to all government departments in the UK and assumed Ireland was the same.