It is lawful for:

     (1) Professional musicians, professional disc jockeys, or professional sound or lighting technicians actively engaged in support of professional musicians or professional disc jockeys, eighteen years of age and older, to enter and to remain in any premises licensed under the provisions of Title 66 RCW, but only during and in the course of their employment as musicians, disc jockeys, or sound or lighting technicians;

     (2) Persons eighteen years of age and older performing janitorial services to enter and remain on premises licensed under the provisions of Title 66 RCW when the premises are closed but only during and in the course of their performance of janitorial services;

     (3) Employees of amusement device companies, which employees are eighteen years of age or older, to enter and to remain in any premises licensed under the provisions of Title 66 RCW, but only during and in the course of their employment for the purpose of installing, maintaining, repairing, or removing an amusement device. For the purposes of this section amusement device means coin-operated video games, pinball machines, juke boxes, or other similar devices; and

     (4) Security and law enforcement officers, and firefighters eighteen years of age or older to enter and to remain in any premises licensed under Title 66 RCW, but only during and in the course of their official duties and only if they are not the direct employees of the licensee. However, the application of the [this] subsection to security officers is limited to casual, isolated incidents arising in the course of their duties and does not extend to continuous or frequent entering or remaining in any licensed premises.

     This section shall not be construed as permitting the sale or distribution of any alcoholic beverages to any person under the age of twenty-one years.

[1985 c 323 § 1; 1984 c 136 § 1; 1980 c 22 § 1; 1973 1st ex.s. c 96 § 1.]