Stephen Daniel Thomas Higgins, aged 18, of Ennerdale Avenue, Onchan, has been charged with driving while under the influence of drugs.
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The offence is alleged to have been committed on July 3.
He was excused attending court but was represented by duty advocate James Peterson.
The court heard that there is a disagreement over the alleged reading, between experts representing the defence and prosecution.
The case was adjourned until March 9 when it is hoped that this will have been resolved.
Bail continues in the sum of £500.