What Privacy rights public sector and private sector employees?

Government employees are entitled to equal protection under the Fourth Amendment as private employees are. Public employees' expectations of privacy in their offices, desks, and file cabinets…may be reduced by virtue of actual office practices and procedures, or by legitimate regulation. (O'Connor v. Ortega(1987) 480 U.S. 709, 717 [107 S.Ct. 1492, 94 L.Ed.2d 714].)