A man has been questioned after drugs were found in the back of his van on the A55.
The 49 year-old was caught speeding near Gaerwen last week, leading to a routine traffic stop.
Officers then searched his home at Menai Bridge where a large haul of suspected Class B drugs and cash were found.
The suspect was arrested and later released under investigation while enquiries continue.
A North Wales Police spokesperson said: "Every stop has the potential to uncover more serious criminality. Proactive policing plays a vital role in disrupting crime and protecting our communities."
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