Man quizzed over 3.5kg of heroin
Detectives are questioning a man after seizing heroin believed to be worth more than half a million euro.
The suspect, in his 40s, was arrested during a raid on a house at Swan Grove, in Ranelagh, south Dublin, yesterday evening.
The search turned up seven blocks of suspected diamorphine - medical grade heroin - which each weighed half a kilo.
They have been sent for forensic analysis but are believed to have a street value in the region of 525,000 euro.
A woman, in her 40s, was also arrested at the scene. She has since been released without any charge while a file is being prepared for the Director of Public Prosecutions.
The detained man is being held at Kevin Street Garda station under section two of the Criminal Justice (Drug Trafficking) Act 1996.
The raid was carried out after a surveillance operation into the sale and supply of the drug in south Dublin.
"These operations use advanced analytical and intelligence methods to disrupt criminals and dismantle their networks," a Garda spokesman said.