Prohibition of acoustic hailing devices. Provides that a law enforcement officer may not operate an acoustic hailing device that emits at least 150 decibels of sound pressure level on any person within 100 feet of the law enforcement officer while acting in the course of the law enforcement officer's official duties. Provides that a law enforcement officer may operate an acoustic hailing device if the device meets the National Institute of Occupational Safety and Health's recommended exposure limit for occupational noise exposure. Provides that a person who knowingly or intentionally operates an acoustic hailing device that emits at least 150 decibels of sound pressure level on any other person within 100 feet of the person commits a Level 6 felony. Provides that the offense is a Level 5 felony if the person committed the offense with the intent to maintain or disperse a crowd or the offense results in serious bodily injury to the other person. Defines "acoustic hailing device".