Government regulations prohibit the consumption of alcoholic beverages brought onboard. As the group leader, it is your responsibility to ensure that all passengers are informed of this policy. Should any passengers consume alcohol they have brought with them, the captain retains the right to cancel the event, and return to the port of entry, if deemed necessary.
Passengers who arrive visibly intoxicated will be denied boarding at the gangway. Any losses resulting from such cancellations will be the responsibility of the customer.