Any portion of an establishment classified by the state liquor control board as off-limits to persons under 21 years of age or.Restricted access areas of a public mental health facility certified by the state Department of Social and Health Services for inpatient hospital care and state institutions for the care of the mentally ill, excluding those facilities solely for evaluation and treatment.The local judicial authority must designate and clearly mark all areas where weapons are prohibited, and shall post notices at each entrance to the building of the prohibition against weapons in the restricted areas Any area of a building used in connection with court proceedings, including courtrooms, jury rooms, judge’s chambers, offices and areas used to conduct court business, waiting areas, and corridors adjacent to areas used in connection with court proceedings.Subject to exceptions, Washington prohibits all persons, including concealed pistol license holders, from possessing a firearm in: