A federal magistrate judge in Chicago on Tuesday is slated to hear arguments about a critical in-house counsel issue: Whether or not lawyers at McDonald’s USA retained their attorney-client and work product privilege while communicating with other employees and an outside consultant.

Earlier this month two lead plaintiffs in an antitrust class action filed a motion to compel McDonald’s to produce 19 documents it has listed as privileged. The suit involves a former “no poach” provision in the company’s contracts with franchisees, which required restaurants not to solicit or hire employees from other McDonald’s restaurants without the other franchisee’s consent.