A man was arrested on suspicion of drug-driving twice in six hours by police, as they warn they will take a zero tolerance approach to drivers under the influence of illegal substances.

Eagle-eyed Dyfed-Powys Police officers spotted the driver behind the wheel just hours after he was released from custody.

The force has seen a rise in arrests for drug-driving in recent months.

Ceredigion Roads Policing Unit officers made the first arrest at 10.41pm on 20 July, after the 37-year-old was seen driving a car suspected to be uninsured.

When officers pulled the Audi over in a car park in Cardigan, they could smell cannabis and carried out a drugs swipe on the driver.

Sgt Richard Lucas, of the Carmarthenshire Roads Policing Unit, said: “The result was positive for cannabis and cocaine, so he was taken to Haverfordwest custody unit.

“Following guidelines for suspected drug-driving offences, he was released under investigation pending the results of blood analysis.

“Despite being advised not to drive, his car was picked up a short while later travelling towards Pencader.”

Carmarthenshire Roads Policing Unit officers pulled the man over at 4.40am on 21 July - just six hours after the first arrest - and another drugs swipe was administered.

This was also positive for cannabis and cocaine.

Sgt Lucas said: “There has been an increase in the number of arrests for drug driving in recent months, and we will continue to be proactive in stopping drivers we believe to be under the influence of illegal substances.”