Connor Buck, of Durnells, Didcot, was caught drug driving on August 25 last year on the A34 near Weston-On-Green.
The 29-year-old was stopped in his black Vauxhall Astra and was caught with 4.8 micrograms of cannabis in his blood.
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At Oxford Magistrates’ Court on February 20 this year, the driver pleaded guilty to one count of driving with a proportion of a specified controlled drug above the specified limit.
He was disqualified from driving for 12 months and fined £200.
Buck was also ordered to pay £85 in court courts and a victim surcharge of £80.
The total amount he will need to pay is £365 which he will pay in instalments starting on March 19.