A. A person is guilty of giving a false alarm if he initiates or circulates a report or warning of any fire, impending bombing or other crime or catastrophe, knowing that the report or warning is false or baseless and is likely to cause evacuation of any building, place of assembly, or facility of public transport, to cause public inconvenience or alarm or action of any sort by any official or volunteer agency organized to deal with emergencies.

B. Giving a false alarm is a class B misdemeanor. (Code 1975 § 13-915)