The  Ninth Circuit Court of Appeals recently ruled that under the Fourth  Amendment, in the absence of a warrant, an employer could consent to a  governmental search of an employee’s office and workplace computer  without the employee’s knowledge or consent.  United States v. Ziegler,  No. 05-30177 (9th Cir. 1/30/07).
In Ziegler, the employer discovered that an employee, Ziegler, had  accessed child pornography websites from his workplace computer.  In the  course of an investigation by the FBI, the employer voluntarily  (without a warrant) turned over Ziegler’s hard drive and a copy of the  hard drive to the FBI.  Ziegler brought a motion to suppress the  evidence obtained from the search of his workplace computer on the  ground that it was obtained in violation of the Fourth Amendment.
While the Ninth Circuit determined that Ziegler had a reasonable  expectation of privacy in his workplace and office computer, they  concluded that the search at issue complied with the Fourth Amendment  because proper consent for the search had been obtained.  The Court  observed that consent may be given by the defendant, but may also be  “obtained from a third party who possessed common authority over or  other sufficient relationship to the premises or effects sought to be  inspected.”                                      (citing U.S. v. Matlock, 415 U.S.  164, 171 (1974)).  The Court determined that the employer could give  valid consent to search the hard drive of Ziegler’s workplace computer  because “the computer is the type of workplace property that remains  within the control of the employer ‘even if the employee has placed  personal items in [it].'”
In Ziegler, the employer advised its employees in training and through  its employment manual that the company monitored internet access, and  the company did in fact regularly monitor employee internet access.  The  employees were also advised that the the computers were owned by the  company and not to be used for personal activities.  Under these  circumstances, the Court held that Ziegler could not have reasonably  expected that the computer was his personal property, over which the  employer had no control.  The fact that the hard drive also contained  personal items did not destroy the employer’s “common authority” over  the computer.
Keesal, Young & Logan Employment Group