Gardaí will soon be subject to random drug testing.
The anti-corruption unit says it's putting members on notice that the misuse of drugs is not tolerated.
It will take at least six months to put the policy into action, but all Garda personnel will be independently drugs tested.
Assistant Commissioner Pat Clavin says any Gardaí who test positive for drugs may face dismissal and possible prosecution.
As well as a substance misuse policy, Gardai today launched a professional boundaries and abuse of power for sexual gain policy and an overarching anti-corruption policy.
