Two drivers suspected of being behind the wheel having taken drugs were arrested last night.
Great Yarmouth police tweeted that the pair had been arrested as part of Operation Moonshot.
The drivers have been released, pending results of blood tests.
Operation Moonshot, first launched three years ago in west Norfolk, uses automated number plate recognition (ANPR) cameras to detect uninsured, untaxed or unroadworthy vehicles, as well as those suspected of being linked to organised crime.
It was extended to Great Yarmouth at the end of last month and criminals have been arrested for a variety of offences, including being concerned in the supply of drugs, possession of offensive weapons and driving under the influence of drugs.
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