Govt Code §54957 [The Ralph M. Brown Act] explained:
According to the First Amendment Coalition Brown Act Primer: Closed Sessions http://bit.ly/1YQsbyT:
The public may not be excluded from a meeting, except as expressly authorized by the Brown Act.
A public body may exclude the public from meetings, holding what are called “closed sessions” or “executive sessions,” in the following circumstances:
(5) to consider the appointment, employment, evaluation of performance, discipline, or dismissal of a public employee or to hear complaints or charges brought against the employee by another person or employee;