Wiltshire Police arrested a Swindon man for drug driving during what they call proactive patrols.
Officers from the Roads Policing Unit yesterday - 21 October - targeted those who get behind the wheel of a car whilst under the influence of illegal drugs.
The force said within three hours, three men were arrested and taken to custody.
At 11.25am, a 19-year-old man from Swindon was driving an Audi A3 along the A4361 in Broad Hinton when he was stopped and arrested on suspicion of drug driving and driving with no insurance.
Earlier at 9.15am, a 39-year-old man from Devizes was stopped driving a Peugeot 3008 on the A361 in Seend. He was arrested on suspicion of drug driving.
At 9.40am, a 29-year-old man from Melksham was arrested for drug driving while in a Nissan Note in Stallard Street, Trowbridge.
All three have since been released under investigation while further enquiries are carried out.
Sgt Will Ayres said: “Driving whilst under the influence of drugs is one of the main contributing factors of death and serious injury on our roads, and officers will continue to proactively target those suspected of offending.
“Often, individuals arrested for drug driving will have taken the substances the day before but they can remain in your system for hours after consumption.
“These arrests should act as a reminder to everyone that if you are considering taking illegal drugs and then getting into the drivers seat of a vehicle, you are putting yourself, your passengers, other road users and pedestrians at serious risk.
“Alcohol and drugs can create a false confidence which can lead to an increase in risk taking behaviour, putting your life and the lives of others in danger.”
Members of the public can report suspected drug driving by calling 101, or 999 in an emergency.