It is an offence to drive if you are unfit to do so because of drugs, whether legal or illegal. It is also an offence to drive if you have certain levels of illegal drugs in your blood, even if your driving is unaffected.
If you are convicted of drug driving you will get a minimum 1 year driving ban, an unlimited fine, up to 6 months in prison and a criminal record. Your driving licence will show that you have been convicted for drug driving for 11 years.
Given the severity of the penalties, it is very important to put forward the strongest defence possible. Having an experienced barrister by your side will ensure that your case is heard.