I teach junior high PE and Health, and I used the following resource in my recently completed "Substance Use and Abuse" unit. It specifically relates to the law in Alberta regarding alcohol and minors. I does not mention the possible consequence for the adult in your case, but here is what it says regarding the minor:
What could happen if I tried to buy liquor with a fake ID?
A person attempting to purchase alcohol with a fake ID could be charged under Section 403 of the Criminal Code, Identity Fraud.
Minors (between the ages of 12 and 17) who are charged with criminal offences are mainly dealt with under the Youth Criminal Justice Act, which aims to rehabilitate youth before they enter the adult legal system. As a result, the penalties can include probation, community service work, or a fine. In very narrow and specific circumstances, a convicted youth could receive an adult sentence.
http://www.johnhoward.ab.ca/docs/modules/Alcohol/ALCL0101-AlcoholAndTheLaw.pdf