Markie Coupland, 19, of Tuplin Road, admitted driving under the influence of drugs and without insurance when he appeared before magistrates in Boston last week.
The court was told he was stopped while driving a Ford Fiesta he was not insured to drive, at 11pm on April 3 in Sea Lane, Sandilands, and was arrested after testing positive for drugs.
A later test gave a reading of 2.5 microgrammes of cannabis in his bloodstream, the legal limit being two.
Mitigating, Daven Naghen said Coupland, who had no previous convictions, had a ‘very low reading’ from smoking cannabis several hours before.
He said he was driving some friends home in his brother’s car as his was out of action.
Coupland was banned from driving for 12 months and was fined £120 and ordered to pay a total of £119 in court costs and charges.