A patrol in the town stopped and searched a man near the High Street on Wednesday 19 July 2023, seizing a small amount of a suspected class A drug and mobile phones.
The 25-year-old was arrested on suspicion of being involved in drug supply and has since been bailed while an investigation continues.
In separate work the following day, a search was carried out by officers at a property in Leyburne Road, leading to suspected heroin being seized.
Two men and a woman, aged between 37 and 58, were arrested and enquiries into activity at the premises are ongoing.
Sergeant Alex Miles, of Dover Community Safety Unit said: ‘Dover’s Neighbourhood Task Force and Beat Team have heard from local residents about concerns around drug dealing in the town.
We fully understand the impact drug dealing and the knock-on crime and anti-social behaviour has on communities and we are determined to keep making arrests and building cases against those involved.
I urge anyone with concerns that drugs are being sold or produced in their area to report it through the Kent Police website, or by calling 999 if a crime is in progress.