While it is legal to serve alcohol in a pool hall, all intoxicated persons must leave the premises.
Background information (if available):
7-69. Minors, intoxicated persons, etc.
(a) No person operating a pool or billiard hall shall permit any intoxicated person to remain in the hall.
(b) If alcoholic beverages are permitted on the premises, no operator of a pool or billiard hall shall permit any person under the age of 18 years to enter the hall unless accompanied by his parent or guardian.