Gardai in Co Meath seized drugs with an estimated value of €20,000 during a search on a house in Co Meath.
Cocaine, speed and cannabis, all subject to analysis, were found at the house in Slane during a search by the Navan drugs unit.
An immitation firearm and a stun-gun were also seized.
A man and a woman, both in their 20s, were arrested and questioned at Navan Garda station under section 4 of the Criminal Justice Act.
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The woman has since been released. The man is still in custody, a Garda spokeswoman said.