The High Court ruled that in order to establish the offense of driving under the influence, the effect of the substance on the driver's ability to drive must also be proven.

The Supreme Court has issued a crucial decision requiring all courts and prosecutors to prove not only the presence of banned substances in the blood, but also their impact on the ability to drive. This ruling will affect the way driving under the influence cases are tried, providing additional clarity in the interpretation of the law and protecting the rights of those accused.