Police were called to an erratic motorist along the M25 onto the M40 by concerned members of public.
The car was intercepted in Aylesbury as the driver was travelling at speed and inhaling balloons.
They were then arrested as they failed a drug wipe indicating the presence of cannabis.
The car was also seized as no tax had been paid since November last year.
The driver was taken to custody where a specimen of blood was secured for a laboratory analysis.
Lessons in Excellence - Buckinghamshire Schools Awards winners revealed
It was top marks all round for schools, teachers, governors, volunteers and education support staff across the county last night (Thursday 9 July) when the winners of Buckinghamshire's fourth annual School Awards were announced.
Hosepipe ban for parts of north Bucks
Residents served by Anglian Water are being urged to stop using hosepipes after the company announced a temporary ban following months of exceptionally hot and dry weather.
Mid-Bucks MP Greg Smith calls for urgent Fly-tipping action
In a post to Facebook, the Conservative MP described the incident in Bledrow Ridge as "appalling".
Annual community fund in Bucks increases to £16,000
Gib Lane Solar Farm has been donating to projects in four parishes since 2015.
EXCLUSIVE: Florrie's Children's Respite Service to close
After 25 years of support for Bucks families, the service will close on August 1st.
Several Bucks initiatives to be supported by Chiltern Railways
It comes as part of the operator's Community Investment Fund.
Bucks Primary schools partnering to keep school days smartphone free
Nine schools in the Thame Partnership have adopted a shared approach.
England's Chief Medical Officer visits Bucks wellbeing initiatives
It comes as part of his research informing a report on health in small towns and rural areas across the country.
