Officers from North Wales Roads Policing Unit say they have taken a man into custody on Friday evening for a number of alleged offences.
Police pulled the driver over on Holywell High Street near Hughes Parry Solicitors.
Officers performed a roadside drug swipe on the driver which they say tested positive for cocaine.
Police also found the car had no insurance and no tax as it is registered as being off road.
On inspection the car had one bald tyre and another with a big cut.
A photograph shared by the police shows the white Vauxhall Astra with a large yellow ‘untaxed vehicle’ sign in the rear window.