A man was arrested on suspicion of drug driving after a three-vehicle collision in Mepal.
The crash happened in Bridge Road at about 10.30pm on Saturday September 7.
When police arrived at the scene, members of the public raised concerns that the driver of one of the vehicles may be under the influence.
The driver failed a roadside drugs test for cocaine and was arrested.
He has been bailed pending further investigation.
Cambridgeshire Police operate a 24/7 drink and drug driving hotline on 0800 032 0845.
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