Police carried out a drugs warrant under the Misuse of Drugs Act at a house on Old Lodge, Llanelli, on Wednesday, (Sep 20).
A Dyfed-Powys Police spokesperson said: “A woman was found to be in possession of heroin and associated paraphernalia. Enquiries are on-going.
“The warrant was carried out by a proactive policing team acting on intelligence of drugs activity in communities.”