Cardiff Council and the local health board have been involved with Operation Foxtrot - which has lead to the arrest of dozens of suspected drug dealers in the capital.
The council says it hopes local people are reassured by "the work which is being done to tackle drug dealing in their neighbourhoods."
Cardiff & Vale University Health Board says the crackdown has disrupted the supply of drugs, which will "hopefully provide users with the catalyst they need to seek treatment".
The impact of drug dealing within our communities cannot be underestimated. The affect that it has on people’s lives and the environment can be devastating.
I am really pleased that the operation has been successful and provides reassurance to those communities about the work which is being done to tackle drug dealing in their neighbourhoods.
I know this is an issue of serious concern for many residents and I hope this and the other measures that the partnership is taking help to provide reassurance that we are committed to taking action to keep Cardiff a safe city in which to live and to visit.
Operation Foxtrot has disrupted the regular supply of Class-A drugs in Cardiff which will hopefully provide users with the catalyst they need to seek treatment.
Throughout the operation, drug support services have been proactive in offering help and support to drug users and this will continue.
As a service we hope to encourage and empower people to regain control of their lives and motivate them to tackle their problems.
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A band of rain pushing in overnight, bringing with it the odd spot of coastal and hill fog, but things should improve by tomorrow.
Local authorities said the move is necessary to "avert the growing number of deaths and increasing harm linked to psychoactive substances".
Sunny and bright spells for most of us this afternoon, feeling pleasantly warm.