Over the years, the National Labor Relations Board ("NLRB") has vacillated on the issue of whether "Weingarten rights" apply to nonunion employees.  Weingarten rights derive from the 1975 US Supreme Court case NLRB v. Weingarten, where the Court announced that unionized employees have the "right" to have a union representative present during

"Neutrality" is the name of the game.  In the recent California case of Nazir v. United Airlines, Inc., the court gave strong cautionary advice about choosing the right workplace investigator.  

The Nazir court raised the point that this particular employer (United Airlines) had extensive rules and policies about the investigation of employee