Four people were arrested in Bicester yesterday as police launched a series of drugs raids across town.
Search warrants were executed at homes in Ray Road, Balliol Road, Lyneham Road, Windrush Close, Roman Way, Winterbourne Close and Hudson Street as part of Operation Reindeer.
The raids involved 65 officers.
A 38-year-old man and women aged 44, 34 and 43 were arrested and taken into custody.
A 15-year-old boy was also cautioned for growing cannabis.