A 38-year-old man has been bailed until December 13 following a raid on a house in Cookham Road, Maidenhead on Thursday night.
A 25-year-old woman and a 38-year-old man have been bailed until December 8 after a property in Cippenham Lane, Slough, was raided on the same night.
Thames Valley Police executed warrants on the houses and six other properties in Reading, Milton Keynes and Newbury as part of Operation Sentinel, which is targeting organised crime.
More than £1,000 in cash has been seized from each of the houses in Maidenhead and Slough.
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Police officers can be seen at Ten Pin Bowling in Maidenhead tonight following an incident earlier today.