David Cassidy, 31, was travelling on Stirling Road along with a passenger when he lost control of his vehicle and collided with a barrier at 10.20am on October 4 last year.

A Dumbarton Sheriff Court heard when police attended the scene they found Cassidy was slurring his words when he confirmed he was the driver.

When officers tested Cassidy for alcohol, the sample gave a negative result, prompting police to search his vehicle, in which they found 2.7g of brown powder which was later confirmed to be heroin.

Cassidy agreed to attend Clydebank Police Office and to be examined by a doctor. However, when the doctor attended the station Cassidy became ‘irate’ and refused to be tested.

He said: “I’m not helping you to help them to f*** me.” Cassidy, of Springboig Avenue, Glasgow, admitted with driving with a provisional license without suitable supervision, without ‘L’ plates, and driving without the correct insurance in place as well as being in possession of a Class A drug.

Cassidy’s solicitor told the court that since the defendant’s previous stint in prison – for which he was released in February 2013 – he had made efforts to avoid drugs and had been ‘somewhat successful’.

However, following issues with child care, Cassidy became upset and wasn’t able to cope and so he turned to drugs.

His solicitor added the drugs in Cassidy’s possession were for his own personal use to use over a period of a few days. He had been in a drug programme before and his rate of offending had decreased in the last two years. Cassidy has been remanded in custody for the last six weeks on a separate charge.

Sheriff William Gallacher said: “I am far from convinced about you and your commitment to this drug treatment order. It’s very hard and difficult and it will be very easy for you to fall off.” The sheriff disqualified Cassidy from driving, released him from custody, and ordered a drug testing treatment order to be completed by May 5.

The sheriff added Cassidy could face jail in May. He said: “I’m not promising anything.” Cassidy replied ’thank you’ as he left the court.