"At each court facility where jury cases are heard, the Board of Supervisors shall provide a deliberation room or rooms for use of jurors when they have retired for deliberation. Such deliberation rooms shall be designed to minimize unwarranted intrusions by other persons in the court facility, shall have suitable furnishings, equipment and supplies, and shall also have restroom accommodations for male and female jurors." (California Code of Civil Procedure, 216 (a))