| Presumption of misuse of intoxicating substance |
| 14. A person shall be presumed, until the contrary is proved, to have used or inhaled any intoxicating substance for the purpose of inducing or causing in himself a state of intoxication if the specimen of blood provided by him under section 13 is certified by a Government chemist to contain an amount of any chemical compound specified in the Schedule in excess of the amount specified in the second column of the Schedule in relation to that chemical compound. |